- NGO -- non-governmental organization, existing in a wide variety of forms and purposes
- UN agency -- a branch of the United Nations, funded by governmental members of the UN
- Governmental aid programs -- run and funded by the individual governments
- Faith-based organizations -- usually NGO's, not always associated with a particular church or denomination, but usually involved with a particular religion
Sunday, March 04, 2007
Hunger: organizing
Friday, March 02, 2007
Hunger: Bill Clinton's Landon Lecture
The main questions he thinks everyone should have answers to (with a summary of his answers in parentheses):
- What one word sums up the world today? (interconnectedness)
- If the world is interconnected, is that a good thing or a bad thing? (both)
- What needs to be done? (end inequality)
- How would you do it? (focus on diplomatic, non-military solutions)
- Who is responsible to do these things? (everyone)
Thursday, March 01, 2007
Hunger: the politics of food supply
Before any farmers find this and throw a fit, I'd like to say that I'm not really sure and I would like an answer. Is it because we want to hang on to our history by keeping people on the farm? Or is it because, in our history, we've 'always' done it. Or is it not historical at all?
The reason I ask is that our subsidies are a major driving force in world hunger. Not just our subsidies, but all subsidies. Remember how the best way to prevent or end hunger is to increase incomes? Well, it's kind of hard to do when our government keeps farm incomes above what the market will sustain. Yes, I know that US farmers are struggling to make ends meet, but even that income level is higher than can really be supported by global trade. We're pricing the low-income countries out of business.
Some might say, hey, our surplus grain is donated to those hungry people! Why should they complain if they're still getting fed? Yes, we send surplus grain grown by US farmers as part of our official hunger relief packages. We send it in ships owned by US companies. We distribute it from warehouses owned and operated by US citizens. We are very generous. Meanwhile, that free grain drives down the price of local grain even more, putting more farmers out of business, increasing poverty and hunger, and kickstarting another vicious cycle.
I'm not saying that all food aid is bad, but it's not quite as altruistic as one might think. When you hear that we're helping the hungry by sending them our surplus, ask why we have a surplus. It could be that we helped create the hunger situation we're now helping to solve.
Wednesday, February 28, 2007
Hunger: the sociology of food supply
He had become convinced of the duty of sympathizing with the lower orders ever since he made a serious study of the Epistle of St James; but he perceived clearly that the lower orders fell into two classes, that it was necessary to distinguish between them. There were the 'good poor' -- and there were the others. 'I am glad that you have mad acquaintance with some of the good poor . . . I quite agree with you that it is most instructive to visit them.' -- Lytton Strachey, of Dr. ArnoldWho are the 'good poor'? Do they exist? Is it, in fact, necessary to distinguish between two classes of lower orders?
This is a common fallacy, but it is less often openly admitted these days. People will say that it is wrong to blame the poor for their situation, then proceed to blame "the others" for theirs: 'oh, but some people don't want to be helped' or 'well, I'm not saying they're beyond redemption, but I don't know what more I can do.' This bothers me; not that we are responsible for helping every hungry person we ever meet, but we can't start by assuming that some of them don't deserve our help.
The sociology of hunger leads to people looking the other way, actively ignoring, the problem unless they hear a heart-tugging story. Face it: not every hungry person is entirely innocent of any wrongdoing, not every starving mother is a saint in persecution. If we deny aid (not actively, of course not, but maybe that proposal doesn't get funded or that organization doesn't get donations) because of the past of the people who need it, we are playing God with our finances and resources. Maybe the first lesson of working in hunger is the humility to say, honestly, that it could be you.
This isn't actually what I was planning on writing for this issue, but I guess I have 34 more posts to remember my original point.
Tuesday, February 27, 2007
Hunger: the economics of food supply
The biggest reason that people go hungry is that they can't pay for food. That sounds like an obvious statement, but it goes deeper than most people think. Yes, on the surface, it means that people simply can't afford food on an individual basis. If I have no money, I can't go to the grocery store and buy a loaf of bread and a gallon of milk. This is the individual hunger of poverty.
Being an epidemiologist, though, I prefer to look at the population level. Why, if there's more than enough food for everyone to eat, are some people not eating? It's because we who are eating too much and wasting are quite literally buying it out from under their noses. This is not saying you need to go on a hunger strike so a kid in the slums of Mumbai can eat. It doesn't work that way; that's the economic fallacy at work. Instead, look at a societal level.
When people have food to sell, they do not sell to the lowest bidder (another duh statement, but bear with me). People sell their commodities to the entities that will pay the most for them. In the case of food, that would be the high-income countries. Thus, food distribution follows the money: more food goes to places with more money. Seeing as there is a serious inequity in money distribution in the world, the distribution of food becomes unequal. Hence, we have obesity while other countries have starvation.
On a side note, this is my biggest worry about the corn ethanol fuel craze; our cars have more money invested in the fuel industry than most people in the world can spend on food, so our fuel industry is going to start outbidding the poor for corn products, leading to higher food prices and more hunger.
What's the solution? Economists would say that if someone can't meet the cost of a required input, they need to increase the capital available for that investment. Translation: they need more money. Jobs, development, any and all methods of raising the income of the poor -- these are the best ways to combat the economics of hunger. Some of them may even have an impact on the social aspects, as well. More on that tomorrow.
Monday, February 26, 2007
Hunger: the food supply
Every day, 4.3 pounds of food is produced per person on Earth. There is enough food produced in the world to provide 2,807 calories per person per day. There's enough food for most people to get fat (obesity epidemic, anyone?).
Livestock take precious food resources away from the hungry, right?
Livestock are included in the figures above. In addition, there are places in this world that are not viable for cropping, but that can 'grow' meat. Take a look at the pictures of Karamoja and tell me the world has a black and white choice between crops and livestock.
So, if we're producing enough food, and it's not the wrong kind of food to produce, why are people hungry?
This week, I'll be focusing on the reasons for a lack of food where it's needed, economic, political, social, and practical (in that order, I think). Just remember: there's no lack of food supplied to feed the world. Hunger is not physically neccessary.
Some sense? returns to surveillance
This sounds like sense, right? We're not finding them, and the one's we've found were probably sporadic cases, so our BSE scare died with only a questionable epidemic (by definition, we had an epidemic, but practically, we didn't). So we cut down testing from (on average) over 200,000 animals a year to testing 40,000. We shut down extraneous testing facilities. We save the taxpayer's dollar.Saying the prevalence of bovine spongiform encephalopathy in the U.S. cattle herd is "extraordinarily low," and doesn't warrant ongoing costly testing and tracking programs, USDA will shutter the Pacific Northwest's only BSE testing laboratory on March 1.
USDA to close BSE lab By Tom Johnston on 2/26/2007 for Meatingplace.com
The Washington State University lab opened after the nation's first BSE case was discovered in nearby Yakima Valley in December 2003, but only two other infected cows have been found, even after the testing of 759,000 animals, including 45,000 in the Northwest.
USDA Spokewoman Andrea McNally told the Associated Press the lack of additional cases spurred the agency's decision to downsize the program and target only 40,000 animals per year. The government plans to close the WSU facility and several others as part of a plan to cut testing by more than 90 percent.
Well, maybe. According to NASS, 4,775 cattle were slaughtered in 1995 (the last year with available data). If we wanted to find a single positive animal in that group, with a perfect test, we would need to test 3,707 animals every year at slaughter. We don't have a perfect test, but we don't know its sensitivity; with the less-than-perfect specificity of our screening test, we'd get a lot of false positives and waste a lot of money. Still, 3,707 is a lot fewer than 40,000.
So what if we're trying to detect BSE in the entire country. According to NASS (again), there were 106,112,000 cattle in the US on January 1, 2006. To detect a single positive animal in that group, with a perfect test, we would need to test just over 1,000,000 animals. That's a lot more than 40,000, and it would just go up with imperfect sensitivity.
So what is the best option? Are we just going midway between 4,000 and 1,000,000 by choosing 40,000? Are we basing that estimate on a different number (maybe the number of downer cows per year)? Or are we playing politics with diagnostics . . . again?
Sunday, February 25, 2007
Hunger: accountability
The famine relief people have it easy. They can say they fed so many thousand starving people for so long. But relief isn't development.
Within my own sphere, livestock development, things tend to move slowly. One of the reasons Heifer International is so popular is that it moves at a noticible pace: people receive their animal, their lives improve. What about cross-breeding to improve genetics? It takes several generations of animals to see an improvement. Cut and carry to improve nutrition? Slow, gradual improvement. Nothing dramatic like building a dam.
And what metric do you use to measure improvement? If you allow development projects to measure their own success, you may get a more meaningful answer. You may get manipulation of data to ensure funding continues. Metrics are specific to the project, but they can be too specific.
And is it appropriate to punish failure? We like to say that a negative answer is still an answer, but try getting it published. The same goes with programs that have gone nowhere -- we learn something from them, but try getting funded again. If a funding agency cares about accountability, they won't go back to a project that has failed. If it doesn't, its funds will be taken up by projects that look good on paper, but don't necessarily even get out the management door.
In other words, accountability is still an issue. My request for you is that you ask about accountability before donating to a group that funds hunger development. If you don't, your money may not be going where it's needed.
Friday, February 23, 2007
Hunger: How many NGOs does it take to feed the world?
There really are a lot of NGOs (non-governmental organizations) working on the hunger issue. They work on nutrition, food aid, food security, agricultural research. They provide hand-outs, hand-ups, participatory research, moral support. They do good work.
Why so many? Well, there are a lot of things to focus on, so it's a good idea to have multiple NGOs working on different issues, right? I don't think so. The various issues are all linked. For example, food prices in Uganda are going up and that's pushing some Ugandans into food insecurity. Why? Because money is pouring into Darfur to feed the hungry, and Sudan isn't producing enough food. The money some NGOs are sending to Darfur is making things harder for other NGOs in Uganda. Wouldn't cooperation be a good idea?
But is the UN (the ultimate in multiple-group cooperation, although not technically an NGO) the answer? Well, that would require the departments within the UN to talk 1) to each other and 2) to other groups. From what I've seen (and I'm young and naive, so I may not have seen this right), the UN departments don't like to communicate outside their own world.
So what is the answer? Well, the HungerWeb is a good start. Start an NGO just to run communications with other NGOs. Get people talking to each other. Know what people are doing where, how it's working (a topic for later), and how it impacts your project.
Until then, have fun searching the double-digit number of free job boards for a specific position. Enjoy observing that the number of people needed in offices is greater than the number of people needed in the field. Streamlining . . .
Thursday, February 22, 2007
Beware the methane
Hunger: overexposure
The theme of the interview, it seems to me, is overexposure. Not of the American people; most really don't know all that much about world hunger. No, it's the people working on hunger who become overexposed. They lose one of two things: 1) their ability to be rational about the situation or 2) their ability to feel for the people they're trying to help. James Morris seems to have been fighting the second, but lost out to the lure of statistics. If I just throw enough statistics at it, people will come to grips with the fact that we have a problem, right?
The statistics are overwhelming. Except that the idea of 18,000 children dying is a little abstract for most Americans. We can understand the child next door dying of cancer, 3 children in a fire, the 13 people killed at Columbine. We can't really conceive of 18,000 children dying
every day. Most Americans, too, have never seen someone die of hunger, so they don't know what it entails. (Side note: the angriest I've ever been with an author was when I read that abortion was a more pressing legislative issue because all the children dying of hunger could hang on one day; after all, abortion is immediate and hunger is slow. This from a doctor.)
So, statistics don't really work because we don't understand them. What would? Americans are underexposed as far as world hunger. The people who know about it are overexposed. Suggestions?
Wednesday, February 21, 2007
The Lenten Theme: Hunger
As the rest of my Lenten discipline is related to world hunger, I'll be writing on the theme of hunger, organizations involved in it, misconceptions about it, and anything that comes up. I'll probably stick to a theme for each week, to be decided as they come.
Today's comment: fasting makes concentration difficult. I know I've seen the stories about children having trouble focusing in school because of hunger, but I had never really experienced it while fasting before. Today, without changing my routine, I decided to fast. At 2:30, I gave in and ate some bread to avoid becoming sick (which may have something to do with the anti-malarial I took at 1). I was unable to concentrate on anything from 10 on. I couldn't work. Even after the bread, I spent 20-30 minutes sitting on my couch, staring blankly. I know, too, that my fast, only meant to be 24 hours or less, is nothing compared to the constant hunger felt by many. I think the hunger itself may be preventing improvement in their situation.
Tuesday, February 20, 2007
Today's photo theme: sunrise, sunset
And, as I mentioned to Dad, the (artificially) zebra-striped bulls. These animals are silver-gray; traditionally, the last animal in a bride-price will be this color and will be given zebra stripes with a branding iron (as seen here).
Monday, February 19, 2007
Today's photo theme: plant life
I'm going to stop these daily posts tomorrow. First, I'm running out of good pictures to post. Second, I'm going to do something else for Lent. I'm not sure what yet, but something . . .
Anyways, here's an acacia tree beauty shot, sitting next to a washed out ravine (washed out by the daily rains we had our second week). As usual, more on flickr.
Playing hunches? Or playing innumerate?
From the title and introduction, I was quite positive; it seemed the author was going to extol the virtues of evidence-based medicine, which (in my opinion) is irretrievably linked to epidemiology. It is the reason we want to apply statistics to health data. It is the best way (again, in my opinion) to choose public health plans that maximize the return on our dollar.
But people not drinking the evidence-based Kool-Aid seem to worry a lot about the ecological fallacy. That's what happens when group data is inappropriately applied to individuals. That's why people thought that it was wrong for a doctor not to order what he thought was an inappropriate test, although the person in question later developed the disease in question.
Too often, however, these people fall prey to the atomistic fallacy. That's what happens when individual data is inappropriately applied to groups. That's why the jury awarding a settlement in the above case was acting more with indignation than sense in second-guessing the doctor and his education.
What's my problem here? Well, I never heard of the atomistic fallacy, in exact or inexact terms, until I did the reading for my class last week. You may have noticed that I do quite a bit of reading on my field. Does that seem odd? I've heard lots about the ecologic fallacy, although never with that term attached, but never anything about an atomistic fallacy. I think that is because of a general atomistic leaning in science and medicine. I've been hearing about (and experiencing) the bias towards bench science since I became interested in epidemiology. What we do, playing with numbers, is not real science in the eyes of many of our colleagues. Of course they would caution against our findings, if they don't trust our methods. But why would they talk about the atomistic fallacy? Their source of funding is reliant on individual, atomistic findings having an effect on a grand level.
That's what most of this comes down to: funding. Researchers competing for funding need to make their research sound applicable. The dominant paradigm is atomistic, so ecological issues are held up for extra scrutiny. And evidence-based medicine, as opposed to "the art of medicine", is considered just as suspect.
Truth is, evidence-based medicine is as much of an art as the old-school anecdotal medicine. The problem is that the art is now based in math and statistics, not hunches. And people going to med (and vet) school don't generally like math and statistics. People in the general public don't generally like math and statistics. Nobody likes art in a medium they don't like.
Saturday, February 17, 2007
Today's photo theme: pathologies!
Friday, February 16, 2007
What is food?
Eat food. Not too much. Mostly plants.That, right there, will answer any nutrition questions we seem to come across these days. Problem is, nobody knows how to cook that food anymore.
Here's my plea: teach your children how to cook from scratch. If you don't know yourself, get them classes with someone who does. Ask grandparents. But raise them cooking, please!
Who's in charge here?
Yes, we really do have a screwed-up food safety program. One of the other things we need to start thinking about: the lack of food animal vets. These include the vets who are doing food inspection, who are working between the food safety program and the producers to improve food safety 'farm to fork'. Would consolidation help? I don't know, but it would make it a little bit easier to understand who's in charge.U.S. Sen. Dick Durbin (D-Ill.) and Rep. Rosa DeLauro (D-Conn.) have re-introduced in Congress a bill that would consolidate into a single food-safety agency the 15 separate federal branches currently charged with protecting the country's food supply.
Senators pitch Safe Food Act again By Tom Johnston on 2/16/2007 for Meatingplace.com
The two Congress members are pushing for new hearings on the Safe Food Act, a bill they have tried to enact for more than 10 years. They re-introduced it simultaneously in both chambers of Congress.
"From the E. coli outbreak that pulled spinach off store shelves to the Taco Bell outbreak that sickened individuals, it is clear that our food safety structure is collapsing and endangering public health," DeLauro said.
The law would hatch a new agency, named the Food Safety Administration, which would carry out the regular, random inspection of all food processing plants, the increased oversight of imported foods, and the adoption of more stringent standards for tracing foods to their point of origin.
Lawmakers are hoping such a consolidation would eliminate the bureaucratic confusion caused by the existing setup, a network in which, for example, the Food and Drug Administration oversees frozen cheese pizza, while USDA presides over frozen pepperoni pizza. The 15 distinct agencies collectively administer at least 30 laws.
"Our current food safety system has turned into a food fight among dozens of federal agencies," Durbin said. He and DeLauro note that their position is supported by the Government Accountability Office's recent placement of food safety on its list of critically flawed federal programs.
One of the perceived hurdles to creating a mega food-safety agency is the cost. And Kate Cyrul, spokeswoman for DeLauro, told Meatingplace.com, "I don't know if [cost] has been scored."
Today's photo theme: the markets
Thursday, February 15, 2007
Today's photo theme: the men
Wednesday, February 14, 2007
Today's photo theme: cows (of course!)
Tuesday, February 13, 2007
Monday, February 12, 2007
What I did in Uganda
Background
In January-February 2007, a team of volunteers from the Kansas State University (KSU) branch of Christian Veterinary Missions (CVM) traveled to
The purpose of this project was to initiate a zoonotic disease survey. Zoonotic diseases, while important in high income countries (HIC), become critical in low income countries (LIC). In LIC’s, direct contact with livestock is more common and basic hygiene is less common (and less possible) than in HIC’s. In HIC’s, zoonotic disease surveys and control are often in the hands of the government, as, for example, in the USDA’s brucellosis control programs. In LIC’s, however, the government is unable or unwilling to pay for such expensive programs; the livestock production systems are also too decentralized for such a top-down approach. This leaves the livestock keepers of these countries to rely on private laboratories (which are too costly for subsistence farmers) or development programs for identification of zoonotic diseases in their animals. It is such a development program, Cooperative Livestock Integration and Development Enterprise (CLIDE), with which this survey is being performed, in collaboration with the Italian Cooperation and Development program (CD).
Karamoja is a semi-arid region in the northeast area of
Cultural risk factors for zoonotic disease are related to food safety concerns. The Karimojong rely on
livestock for their main protein sources: blood and milk. Blood is collected from live animals and at slaughter to be drunk raw or cooked, primarily the former. Milk is most often drunk raw or made into sour butter, or ghee. Cow’s milk is used by adults, while goat’s milk is only drunk by the children. The boys responsible for following the herds to pasture will milk the goats into their hands and drink the milk immediately. This means they are exposed to pathogens in these food products.
Diseases Surveyed
The
Brucellosis is a bacterial disease transmitted to humans primarily through unpasteurized dairy products, although manure and saliva are also possible sources of disease. It produces recurrent fevers, mimicking malaria, swollen joints, and nervousness or irritability. The primary symptom in cattle is abortion. The disease is most often spread between cattle by contact with the aborted fetus and the placenta from those abortions. It may also be spread sexually; infected cows will infect a bull during coitus, which can then infect other cows in a similar manner.
TB is a mycobacterial disease also transmitted to humans through unpasteurized dairy products, although human to human transmission of the human-specific Mycobacterium tuberculosis is more common in most of the world than the zoonotic Mycobacterium bovis. Feces, saliva, and aerosolized sputum (from coughing) are all sources of disease, for people and for animals. In people and animals, the symptoms of TB are fever and inappetence, leading to a thin appearance.
Hydatid disease, caused by the tapeworm Echinococcus granulosus, generally exists in a lifecycle between dogs and small ruminants. The adult lives in the intestine of the dog, passing eggs through the feces. The small ruminant then ingests those eggs, which hatch into larvae. The larvae encyst themselves in the viscera; when those cysts are ingested by the dog, the life cycle begins anew. Humans ingesting the eggs may become infected and develop cysts in the liver, lungs, and brain, requiring surgical removal.
Procedures
The team from KSU travelled to Karamoja in order to bring testing supplies and train a local team of animal health workers and veterinarians in the skills necessary to survey the cattle of the Moroto district for brucellosis and TB. Testing supplies sufficient for 1000 head of cattle were supplied to the Karamoja Diagnostic Laboratory, a part of CD. This sample size will allow determination of the true prevalence of disease with 95% confidence intervals of +/- 2%.
Testing procedure within a manyatta was based on clinical signs and relative risk; owners were requested to identify breeding bulls, older cows, and any animals that have aborted or experienced prolonged coughing recently. For each animal, the following information was collected: name, age, sex, color, clinical history, current temperature, and treatment history. Blood was drawn from a tail vein into a red-top tube and tuberculin was injected intradermally into the caudal tail fold. The animal was then given an ear tag and a subcutaneous injection of Ivermectin, as a thanks to the owner for allowing testing. After 72 hours, the caudal tail fold was examined to determine TB reactivity. The blood was taken on ice to the Karamoja Diagnostic Laboratory, where it was centrifuged to produce serum. The serum was then used in the standard Rose Bengal card test, as provided by the USDA-NVLS Brucellosis laboratory.
Results
By the end of the week available for testing, 56 animals had been tested for brucellosis and 26 had been tested for TB. Due to the time constraints of reading TB tests within 72 hours, 30 cattle were tested for brucellosis but not TB; those animals will be TB-tested at a later date.
The Rose Bengal test showed 9 positive reactors in the 56 tested, including both bulls and cows. The director of the laboratory and the laboratory technician were trained in the performance and reading of the test.
The TB test produced one reactor, which will later be confirmed via culture of the sputum and comparative cervical test. Two field veterinarians were trained in the performance and reading of the test.
In the 9 canine fecals performed, only Ancylostomma eggs were observed. One unidentified adult tapeworm was seen; however, follow-up was not possible.
Conclusion
The zoonotic disease survey as carried out so far has established the presence of both brucellosis and TB in the cattle of the Karimojong. It is important to continue this study and establish both prevalence data and risk factor analysis; with that data, a control plan can be established to improve public health in the region. A recent meeting with the district veterinary officers of the four districts in Karamoja and the regional medical centers established the interest and support of the local veterinary and human medical community. It is to be hoped that the survey may be expanded to include other zoonotic diseases and other districts.
Other posts on this topic:I'm back!, More teasers, Today's photo theme: Mother and child, Today's photo theme: cows (of course!), Today's photo theme: the men, Today's photo theme: the markets, Today's photo theme: pathologies!, Today's photo theme: plant life, Today's photo theme: sunrise, sunset
And, of course, my flickr site.
More teasers
New plan for sharing my Uganda photos: I'll post one here and 6 on flickr on a theme each day until I get tired of doing that or run out of room on flickr. Here's today's theme: children in Karamoja.
South Dakota cow tests positive for bovine TB | |
By Tom Johnston on 2/12/2007 for Meatingplace.com | |
Originating in a cull cow feedlot in the state's southeastern region, the cow that tested positive was sold to a slaughterhouse in Wisconsin. South Dakota veterinarian Sam Holland told reporters that initial tests were negative, but a third test confirmed the infection and the herd was quarantined. Testing will determine whether the disease has spread, he said. The state could lose its tuberculosis-free status if more than two herds are found to be infected. |
Having just been testing cattle for TB (albeit in a slightly different setting; see the photo below), I found this very interesting. Feedlot cows would be very susceptible to spreading TB: close quarters, large mixing, stress, respiratory disease. But where did the cow come from? We don't have bovine TB in S Dakota . . . but we do have it in Minnesota. This is where we need the NAID system for quick and easy trace-back.
Fun with data
This sounds like a fun toy; I can't wait to play with it. Oh, wait, it's supposed to be used for good!
OIE launches global animal health database By Tom Johnston on 1/16/2007 for Meatingplace.com
The World Animal Health Organization has announced that the World Animal Health Information Database, a global animal diseases tracking system, is now available. To access the system, click here.
A complement to OIE's World Animal Health Information System launched in April 2006, the new database, commonly referred to as WAHID, provides all available data on animal diseases per country, region, month and year. The compilation also includes, among other things, animal population by country, epidemiological events maps, global animal diseases distribution maps and comparative disease status between countries.
"WAHID is designed to provide high quality animal diseases information to all stakeholders including veterinary services, international organizations, trading partners, academics, the media and the larger public," said Dr. Karim Ben Jebara, head of the OIE Animal Health Information Department. "All can access and monitor with us the evolution of animal diseases in one or several countries or regions of the world."
The new online interface will permanently replace Handistatus II, which compiles data from 1996 to 2004.
Catching up, slowly
Statistics fun!
Milk as it is (not) meant to be enjoyed -- sad to say, though, I have used such a product in the construction of custards. I can't stand waste.
Sunday, February 11, 2007
Monday, January 15, 2007
What makes a vaccine?
But what is the point of a vaccine? In epidemiologic terms, it is to a) prevent infection, b) prevent or decrease transmission, or c) prevent or decrease symptoms of the disease. So does circumcision count? I'm not sure.
Yes, we have good evidence that circumcised men are less likely to become infected. The bias involved, however, is overwhelming -- the differences in most of these studies that led to one man being circumcised rather than another stem from culture and religion. Could either of those factors affect, say, sexual behavior? Probably. Do we have a plausible biological reason for HIV preferring uncircumcised men? Not really, in my opinion, although there's a lot of hot air on the subject. We have a link. That's all we can really say.
So what do we do with a link, with a cultural action that may be protective? In my opinion, ignore it and push cultural acceptance of condoms and abstinence. We know they work and we know why. Until a real vaccine comes along.
Sunday, January 14, 2007
Book Review: The American Plague
The rest of the book, outlining the contribution of many, including Walter Reed, to understanding the way yellow fever worked and how to stop it, was good. Not spectacular, but good. Some of the human drama, the stories behind the human subjects in the Havana trials, are really quite stirring. For the most part, though, it's just solid storytelling. It's almost, at times, as if the author got a little bored, herself, and couldn't really be bothered to keep the energy up. With the lessons that could be taught about the spread of yellow fever in modern Texas, I don't know why the end wasn't a bit more . . harrowing? . . frightening? . . interesting?
You should read this book for the story of what happened to Memphis. The rest is good background in the subsequent history of yellow fever, but the book is worth it mostly for the first section.
Just to brag
Yes, isn't he adorable? And he likes to pose:
Which, given that I have a new camera and had it with me on my last visit, is very convenient.
Oh, and since I did take other pictures, here's a glimpse of WNY in December:
Isn't that depressingly non-white? Oh well, it's snowing here today!
Cruelty?
No, my problem is more with the idea that non-vegan clothing/food is cruel. It can be, of course. But it doesn't have to be -- and I don't like the implication that it does.
Tuesday, January 09, 2007
Bias?!?! No!
I'll wait for the shock to die down.
We all know (or we should) that companies funding research into their product will sit on any negative results. Thus, there's a simple publication bias towards positive results (which is there for any study, really, but more so when the funding is private and financially interested). Be aware. Any article will (or, again, should) mention the source of funding. Look at it and understand what it might mean to the results.
Friday, January 05, 2007
So far, so good
Why? Because women do the best, in most situations, at getting health care to children who need it. Because educating a woman on nutrition affects her entire family. Because women are teachers and nurses and farmers. Good for Dr. Chan!
Second priority is Africa: it's hip, it's got lots of important diseases, and it has the biggest opportunity to show improvement. Of course, it also has the biggest opportunity to fail completely. Good luck, God speed.
At the end of her priorities is bird flu. Why? Because it's not as important as a lot of other things that are going on. But it's the controversy over Dr. Chan; she's Chinese, from the government that hid its bird flu problem (badly). Is she going to favor her non-transparent home government? We'll have to wait and see.
Now, though, she just needs to start the job. Alright, time to show your stuff. Get to work.
Turns out they're not actually a good idea!
Study: Antibiotic use in poultry hurts bottom lineYes, one of the best uses of epidemiology -- figuring out that something we don't want to happen isn't a good idea economically. Listen, people: use economics to back up your moral views. Otherwise, people just won't listen.
By Alicia Karapetian on 1/4/2007 for Meatingplace.com
A new study conducted by researchers at Johns Hopkins University contends that using antibiotics in poultry for growth-promoting purposes actually reduces the net value of each broiler carcass.
According to the study's results, growth-promoting antibiotics decrease the value of each carcass by almost one cent.
The research, which appears in this month's issue of the journal Public Health Reports, claims to be the first economic analysis of the practice in poultry production. The Johns Hopkins researchers used data previously published by Perdue Farms, which looked at 7 million broilers produced by the No. 4 processor.
However, a National Chicken Council spokesman told Meatingplace that the study's results lacked significance because industry use of growth-promoting antibiotics has declined in recent years, and the primary use of antibiotics is for animal health.
Jay Graham, one of the authors of the study, told Meatingplace that his research showed that the companies that do not use growth-promoting antibiotics only represent 38 percent of American poultry production. Graham also highlighted international implications of the study. "This [study] is important because poultry production is growing rapidly [overseas], mostly in developing countries," he said. "There is a belief that using [growth-promoting antibiotics] in feed is necessary from an economic perspective."
Organizations such as Keeping Antibiotics Working oppose the use of antibiotics in animal feed due to fears of potential human resistance to drugs deriving from the same substances. NCC maintains there are no proven cases of human health problems resulting from antibiotic use in the U.S. poultry industry.
Graham, however, contends that antibiotic use in animal feed does affect drug resistance levels in humans. "There are studies that indicate some human drug resistant infections most likely originate from agricultural use of antibiotics," he said.
Sad, but true.
Wednesday, December 20, 2006
Book Review: The White Man's Burden
Especially good is the chapter "Invading the Poor". Most of the foreign aid in the US is military; Easterly shows that such military aid is useless to harmful. Also good are the 'snapshots' beginning each chapter, showing real life issues -- anecdotal, but they put things in perspective.
The book is summed up in a paragraph close to the end:
Aid won't make poverty history, which Western aid efforts cannot possibly do. Only the self-reliant efforts of poor people and poor societies themselves can end poverty, borrowing ideas and institutions from the West when it suits them to do so. But aid that concentrates on feasible tasks will alleviate the sufferings of many desparate people in the meantime. Isn't that enough?It's enough for me.
Tuesday, December 19, 2006
Once again
Read it. I don't have much to add.
Who are these people?
Why are we talking to hobby farmers? Because we (and by 'we' I mean the NYT) are a city paper with no connection to the livestock industry.
NAIDS is in no way an invasion of privacy. If you are selling animals for public consumption, you cannot claim that identifying them as having come from you is invading your privacy. If that was true, factories would never be responsible for replacing faulty products and the recall would disappear. I know you don't want to think that your animal might start a pandemic, but it could!!! No matter how safe your farm management is. No matter how libertarian your views are. NAIDS is a public safety measure. Accept it.
And then the editorials!
While I'm never going to be against more funding for my field (that would be like asking to not be given a raise), I don't think that's the answer. In fact, I dare say there is no answer. Do you think the FDA is reckless with your food safety? Do you believe in the 5 second rule? Do you eat at notoriously unsafe fast food restaurants? Do you eat bagged spinach without washing it? Do you blame the FDA for that.
Of course you do. We don't believe in personal responsibility anymore, only corporate faults and legislation to punish them.
As to the issue of speed . . . we're limited, but it's not usually by funds. We're limited by the speed (or lack thereof) of the diagnosing physicians, laboratories, and state health departments. We're limited by the helpfulness (or lack thereof) of the people involved in the outbreak in answering questionnaires. We're limited by political wrangling in the main offices, deciding the economic cost/benefit ratio of the possible moves. We're limited by the fact that there are a lot of people out there eating a lot of food.
Lesson to take home (this may sound familiar if you've been reading a while): you're responsible in large part for your own food safety. We can do our best to keep your food free of pathogens and pollutants, but you're going to have to accept some of the onus of food safety.
Shoeleather Epidemiology
When the NYT lauds the detective work of the epidemiologists who traced down the Taco Bell E coli outbreak, are they praising the field or misunderstanding it? Yes, it was necessary to ask around to find the link between these cases. Yes it was well done. But how else were they supposed to do it? I can't see that the researchers did anything remarkable in this case. They followed the time-honored tradition of John Snow (review of The Ghost Map to come when I finish reading it). They weren't breaking ground.
And yet. They did a good job. They found the culprit. They got it shut down. Good for them. They deserve an article in their praise. Maybe such articles will lead more people to understand what it is we do!
After a long pause
Monday, November 27, 2006
And now for something completely better
Never underestimate the power of bureaucracy
Friday, November 17, 2006
Hunger vs. Food security
USDA: You're not hungry, you just have very low food security |
by Pete Hisey on 11/17/2006 for Meatingplace.com |
According to USDA's newly published report, "Household Food Security in the United States, 2005," hunger in the United States has declined slightly since 2004. According to the report, about 11 percent of the U.S. population is classified as "food insecure," with about one-third of those classified as having "very low food security." That means that members of these 3.9 million households and 35 million people experience varying levels of hunger during the year, ranging from skipping meals or eating smaller portions to losing weight due to lack of food. The number of households experiencing hunger remains unchanged from 2004, but overall the number of Americans with "very low food security" has risen over the past five years. However, the word hunger does not appear in the report, which Democrats charge was held back until after the mid-term elections, a charge called "ridiculous" by USDA. Instead, hungry people are described as suffering from "disruptions in eating patterns and food intake." Mark Nord, the USDA sociologist responsible for the report along with co-authors Margaret Andrews and Steven Carlson, defends dropping the terms hunger and hungry to describe the phenomenon of not having enough food by saying the terms are not scientific. "We don't have a measure of that condition," he said. Consumer and poverty groups are up in arms about the abrupt change in terminology, but USDA says that the change was part of an overhaul of the entire report process to ensure that language used in the report is "conceptually and operationally sound." Three years ago, USDA asked for recommendations from the Committee on National Statistics of the National Academies to suggest more scientifically rigid terminology. The committee, among other suggestions, recommended that the word hunger be dropped, since it could describe anything from a mildly uncomfortable feeling familiar to everyone prior to mealtime to "discomfort, illness, weakness or pain." "Hunger is clearly an important issue," said Nord, but since there is no consensus about what exactly it refers to, it's not particularly meaningful as it relates to the economic research that backs the report. |
Tuesday, November 14, 2006
How does this apply to your life . . .
People really have trouble with math instruction. They think that there is no in-between, that it must be rote memorization or free-form. Really, whose idea was this -- students don't learn long division because it stifles creativity?!?! We don't insist on allowing creativity with grammar. We don't allow creativity with basic rules. We don't creatively mix chemicals in our school labs (research labs are another story, of course). Why does division have to be creative?
The result is people who are either afraid of math or don't understand it. If you don't think that's a problem, think about how many people have a hand in giving you medicine in the hospital: the doctor writes the Rx, the pharmacy fills it, and the nurse gives it, all using math along the way.
See, I presented my research to a room full of clinicians, interns, and residents today. The talk relied heavily on understanding probability, so I did a fairly thorough review. I didn't get into the math involved on the disease model, though, and I assumed more statistical knowledge than most of them probably had. After, a surgeon thanked me, but said I should have covered the math more. I told him I didn't want to go over the heads of the interns and residents. His response: well, they need to learn it sometime. One of my epi-leaning colleagues joked that it is now my job to teach them. Sorry for the coming rant, but really! I have 25 minutes to present my research; do I need to spend half of it teaching basic statistics to my peers?
The truth, of course, is that epidemiologists do become the de facto sources of statistical knowledge in veterinary medicine. Rather than study it themselves, other vets hand us the math. We do our own research, but we also have to analyze other people's data. How does this relate to math teaching? Most of them were convinced early on that 1) they weren't good at math and 2) they wouldn't need to be.
And the exceptions (like my colleagues and me) get to pick up the pieces.
Friday, November 10, 2006
Is hot air measured in square feet our hours?
Well, mostly by him. First we had to sit through a rambling introduction by General Myers. That man can blather with the best of them.
The amazing thing was that, after an hour of talking, nothing was said. Not nothing important; nothing. Ah, politics.
Some phrases/concepts that might be interesting to those without access to such things:
- communists are totalitarian, just like non-centralized terrorists
- "The enemy has brains. They do things."
- We are fighting a war against people with no home state to defend; this is why we invaded 2 countries
- we should study history to avoid repeating mistakes
Stool essentials
Really, sanitation is essential. We pay so much attention in this country to manure management in our CAFO's, but we ignore the fact that much of the world doesn't have toilets. Including, and this is important, the source of much of our fresh supermarket produce. It is important, even if you're not a bleeding-heart.
Monday, November 06, 2006
Oversaturated?
Friday, November 03, 2006
What does it say about America when . . .
Monday, October 30, 2006
Striking a blow for food security
I don't know why this wasn't posted before, but here it is.
Tuesday, October 24, 2006
It's the economics, stupid!
Yes, I'm sure some of these producers (especially) and executives are doing it to feel good about themselves and their product (I mean animals, whoops!). Good feelings don't pay the mortgage and warm hearts don't heat the offices. Call me a cynic, but they're in it for the money.
Not that that's a bad thing. It allows consumers the choice to be warm and fuzzy about their animal products. I like that. If the results are good, who are we to complain about the motive? (Until, that is, it stops being profitable to be humane . . . good thing the effects of cortisol force a baseline.)
Wednesday, October 18, 2006
Tuesday, October 17, 2006
At long last
Fascinating thought: is math gender neutral? According to many men, apparently, it isn't. They seem to think that men are naturally better with numbers than women (in general; of course there are exceptions).
This is important to me because a good deal of epidemiology is numbers and number-crunching. While the pure mathematicians may compare our work to actuarial science, it has its own beauty of formulas, proofs, etc. The beautiful, however, is rarely as useful as the ugly day-to-day applied work; hence, the insulting reference to cubicle mice and their charts. Yes, we do a lot of statistics. We also model.
Digression aside, is mathematics inherently male? I can't really agree with that assessment, but I have no proof. Neither do they, though, and it hasn't stopped them from acting on their belief. Women in the hard sciences do have a harder time than men, and I don't think its just ability. There is bias against the feminine viewpoint, most likely historical in origin. Modern science grew from a source that was even more predominantly male, so it took on male characteristics: single-mindedness, straightforwardness, a boys-club camraderie in conferences and collaborations. Does that mean that science itself, or the math behind it, must be male? Regardless of the answer to the previous question, does that give adequate support for a field producing male PhDs and female lab techs?
Women are discouraged from entering hard science (medicine doesn't count; maternal instincts are in our favor there now). Women are certainly rare in high-level science and mathematics, in comparison to men. Even in my generation, graduate groups are overwhelmingly male on the scientific side. This goes back quite a while; I recently learned (and not from the wiki, don't worry) that Florence Nightingale was rebuffed in an attempt to fund a chair in applied statistics at Oxford, despite being a fellow of the Royal Statistical Society. She was a pioneer of epidemiology whose mother didn't want her to study math. Are we producing even more short-sighted mothers and fathers these days, or have we changed the persona of math and science? I'm not optimistic.
Monday, October 16, 2006
Buy shares in Radsafe, now!
Thursday, October 05, 2006
The beauty of oddity
Monday, October 02, 2006
I'm worried about that avian bird flu, myself
And they spent as much time talking about a newly dead racehorse.
Interesting stats, like the fact that, for the same number of people, Canada has 4 (soon to be 5) vet schools to California's 2. Mostly, though, a fluff piece of interviewing an overworked small town vet.
Yes, this is a problem. I'm glad they did a piece on it. I wish we could get someone to seriously discuss our options and DO SOMETHING ABOUT IT! Open some new schools. Expand existing ones. Recruit farm kids and public health-minded students. Change the bias in our profession.
Yes, there is a bias. In the last issue of JAVMA, there was a good article about addressing that bias and getting (and keeping) more food animal-oriented students. It was followed by an article about disaster recovery and the importance of the human-animal bond for Katrina evacuees. 1 sentence about 'oh yes, some large animals were affected too'. The irony was a bit much for me. We're not going to fix this gap without fixing that attitude.
One more attitude adjustment that seems to be required: we need funding for more vet schools (or more capacity at existing ones). There are more applicants who would qualify, I'm sure, than we are admitting. Let's find a place for them. Let's recruit the ones with skills we need (math, agriculture, economics). Let's plug the hole.