Anthropology Friday: Appalachia, pt 3/4

Blue Ridge Mountains, Appalachia

Welcome back to Anthropology Friday. Today we are continuing with Kephart’s Our Southern Highlanders, published in 1913, starting with homicide rates.

In my opinion, Homicide Rate data collected before 1930 or so is highly questionable, for reasons that will soon become clear:

“Mountaineers place a low valuation on human life. I need not go outside my own habitat for illustrations. In our judicial district, which comprises the westernmost seven counties of North Carolina, the present yearly toll of homicides varies, according to counties, from about one in 1,000 to one in 2,500 of the population. And ours is not a feud district, nor are there any negroes to speak of. Compare these figures with the rate of homicide in the United States at large, about one to 8,300 population; of Italy, one to 66,000; Great Britain, one to 111,000; Germany, one to 200,000.”

EvX: And yet there are very few convictions, as noted previously.

““The laws are insufficient for the Governor to apply a remedy.” One naturally asks, “How so?” The answer is that the Governor cannot send troops into a county except upon request of the civil authorities, and they must go as a posse to civil officers. In most feuds these officers are partisans (in fact, it is a favorite ruse for one clan to win or usurp the county offices before making war). Hence the State troops would only serve as a reinforcement to one of the contending factions. To show how this works out, we will sketch briefly the course of another feud.—

“In Rowan County, Kentucky, in 1884, there was an election quarrel between two members of the Martin and Toliver families. The Logans sided with the Martins and the Youngs with the Tolivers. The Logan-Martin faction elected their candidate for sheriff by a margin of twelve votes. Then there was an affray in which one Logan was killed and three were wounded.

“As usual, in feuds, no immediate redress was attempted, but the injured clan plotted its vengeance with deadly deliberation. After five months, Dick Martin killed Floyd Toliver. His own people worked the trick of arresting him themselves and sent him to Winchester for safe-keeping. The Tolivers succeeded in having him brought back on a forged order and killed him when he was bound and helpless.

“The leader of the Young-Toliver faction was a notorious bravo named Craig Toliver. To strengthen his power he became candidate for town marshal of Morehead, and he won the office by intimidation at the polls. Then, for two years, a bushwhacking war went on. Three times the Governor sent troops into Rowan County, but each time they found nothing but creeks and thickets to fight. Then he prevailed upon the clans to sign a truce and expatriate their chiefs for one year in distant States. Craig Toliver obeyed the order by going to Missouri, but returned several months before the expiration of his term, resumed office, and renewed his atrocities. In the warfare that ensued all the county officers were involved, from the judge down. …

“The posse here mentioned was organized by Daniel Boone Logan, a cousin of the two young men who had been murdered, a college graduate, and a lawyer of good standing. With the assent of the Governor, he gathered fifty to seventy-five picked men and armed them with the best modern rifles and revolvers. Some of the men were of his own clan; others he hired. His plan was to end the war by exterminating the Tolivers.

“The posse, led by Logan and the sheriff, suddenly surrounded the town of Morehead. Everybody gave in except Craig Toliver, Jay Toliver, Bud Toliver, and Hiram Cook, who barricaded themselves in the railroad station, where all of them were shot dead by the posse.

“Boone Logan was indicted for murder. At the trial he admitted the killings; but he showed that the feud had cost the lives of not less than twenty-three men, that not one person had been legally punished for these murders, and that he had acted for the good of the public in ending this infamous struggle. The court accepted this view of the case, the community sustained it, and the “war” was closed.”

EvX: older homicide stats are not trustworthy.

“It should be understood that national and state politics cut little or no figure in these “wars.” Local politics in most of the mountain counties is merely a factional fight, in which family matters and business interests are involved, and the contest becomes bitterly personal on that account. This explains most of the collusion or partisanship of county officers and their remissness in enforcing the law in murder cases. Family ties or political alliances override even the oath of office.”

On the Origins of “poor whites” and Appalachians:

“The unfortunate class known as poor whites in the South is descended mainly from the convicts and indentured servants with which England supplied labor to the southern plantations before slavery days. The Cavaliers who founded and dominated southern society came from the conservative, the feudal element of England. Their character and training were essentially aristocratic and military. They were not town-dwellers, but masters of plantations. Their chief crop and article of export was tobacco. The culture of tobacco required an abundance of cheap and servile labor.

“On the plantations there was little demand for skilled labor, small room anywhere for a middle class of manufacturers and merchants, no inducement for independent farmers who would till with their own hands. Outside of the planters and a small professional class there was little employment offered save what was menial and degrading. Consequently the South was shunned, from the beginning, by British[Pg 357] yeomanry and by the thrifty Teutons such as flocked into the northern provinces. The demand for menials on the plantations was met, then, by importing bond-servants from Great Britain. These were obtained in three ways.—

1. Convicted criminals were deported to serve out their terms on the plantations. Some of these had been charged only with political offenses, and had the making of good citizens; but the greater number were rogues of the shiftless and petty delinquent order, such as were too lazy to work but not desperate enough to have incurred capital sentences.

2. Boys and girls, chiefly from the slums of British seaports, were kidnapped and sold into temporary slavery on the plantations.

3. Impoverished people who wished to emigrate, but could not pay for their passage, voluntarily sold their services for a term of years in return for transportation. …

“Then came a vast social change. At a time when the laboring classes of Europe had achieved emancipation from serfdom, and feudalism was overthrown, African slavery in our own Southland laid the foundation for a new feudalism. Southern society reverted to a type that the rest of the civilized world had outgrown.

“The effect upon white labor was deplorable. The former bond-servants were now freedmen, it is true, but freedmen shorn of such opportunities as they were fitted to use. Sprung from a more or less degraded stock, still branded by caste, untrained to any career demanding skill and intelligence, devitalized by evil habits of life, densely ignorant of the world around them, these, the naturally shiftless, were now turned out into the backwoods to shift for themselves. It was inevitable that most of them should degenerate even below the level of their former estate, for they were no longer forced into steady industry.

“The white freedmen generally became squatters on such land as was unfit for tobacco, cotton, and other crops profitable to slave-owners. As the plantations expanded, these freedmen were pushed further and further back upon more and more sterile soil. They became “pine-landers” or “piney-woods-people,” “sand-hillers,” “knob-people,” “corn-crackers” or “crackers,” gaining a bare subsistence from corn planted and “tended” chiefly by the women and children, from hogs running wild in the forest, and from desultory hunting and fishing. As a class, such whites lapsed into sloth and apathy. Even the institution of slavery they regarded with cynical tolerance, doubtless realizing that if it were not for the blacks they would be slaves themselves.”

EvX: Note: the image of the lazy, apathetic Southern white was mostly caused by chronic anemia due to epidemic levels of hookworm infection. Hookworms came with the African slaves, who were at least somewhat adapted and thus resistant to their effects, and quickly infected the local whites (the poorest of whom had no shoes and worked barefoot in the fields, spreading, yes, human waste for fertilizer on the crops) who had much less evolved resistance to the worms…

“Now these poor whites had nothing to do with settling the mountains. …

“The first frontiersmen of the Appalachians were those Swiss and Palatine Germans who began flocking into Pennsylvania about 1682. They settled westward of the Quakers in the fertile limestone belts at the foot of the Blue Ridge and the Alleghanies. Here they formed the Quakers’ buffer against the Indians, and, for some time, theirs were the westernmost settlements of British subjects in America. These Germans were of the Reformed or Lutheran faith. They were strongly democratic in a social sense, and detested slavery. They were model farmers and many of them were skilled workmen at trades.

“Shortly after the tide of German immigration set into Pennsylvania, another and quite different class of foreigners began to arrive in this province, attracted hither by the same lodestones that drew the Germans, namely, democratic institutions and religious liberty. These newcomers were the Scotch-Irish, or Ulstermen of Ireland. …

“Being by tradition and habit a border people the Scotch-Irish pushed to the extreme western fringe of settlement amid the Alleghanies. They were not over-solicitous about the quality of soil. When Arthur Lee, of Virginia, was telling Doctor Samuel Johnson, in London, of a colony of Scotch who had settled upon a particularly sterile tract in western Virginia, and had expressed his wonder that they should do so, Johnson replied, “Why, sir, all barrenness is comparative: the Scotch will never know that it is barren.”

“West of the Susquehanna, however, the land was so rocky and poor that even the Scotch shied at it, and so, when eastern Pennsylvania became crowded, the overflow of settlers passed not westward but southwestward, along the Cumberland Valley, into western Maryland, and then into the Shenandoah and those other long, narrow, parallel valleys of western Virginia that we noted in our first chapter. This western region still lay unoccupied and scarcely known by the Virginians themselves. Its fertile lands were discovered by Pennsylvania Dutchmen. The first house in western Virginia was erected by one of them, Joist Hite, and he established a colony of his people near the future site of Winchester. A majority of those who settled in the eastern part of the Shenandoah Valley were Pennsylvania Dutch, while the Scotch-Irish, following in their train, pushed a little to the west of them and occupied more exposed positions. There were representatives of other races along the border: English, Irish, French Huguenots, and so on; but everywhere the Scotch-Irish and Germans predominated.”


EvX: If you aren’t already familiar with the Appalachian chain, a god look at a topographic map reveals that the easiest area for introgression is around Pennsylvania, then southward through parallel mountain valleys, rather than westward over the tops of the mountains.


Did tobacco become popular because it kills parasites?

While reading about the conditions in a Burmese prison around the turn of the previous century (The History and Romance of Crime: Oriental Prisons, by Arthur Griffiths)(not good) it occurred to me that there might have been some beneficial effect of the large amounts of tobacco smoke inside the prison. Sure, in the long run, tobacco is highly likely to give you cancer, but in the short run, is it noxious to fleas and other disease-bearing pests?

Meanwhile in Melanesia, (Pygmies and Papuans,) a group of ornithologists struggled up a river to reach an almost completely isolated tribe of Melanesians that barely practiced horticulture; even further up the mountain they met a band of pygmies (negritoes) whose existence had only been rumored of; the pygmies cultivated tobacco, which they traded with their otherwise not terribly interested in trading for worldy goods neighbors.

The homeless smoke at rates 3x higher than the rest of the population, though this might have something to do with the high correlation between schizophrenia and smoking–80% of schizophrenics smoke, compared to 20% of the general population. Obviously this correlation is best explained by tobacco’s well-noted psychological effects (including addiction,) but why is tobacco so ubiquitous in prisons that cigarettes are used as currency? Could they have, in unsanitary conditions, some healthful purpose?

From NPR: Pot For Parasites? Pygmy Men Smoke out Worms:

On average, the more THC byproduct that Hagen’s team found in an Aka man’s urine, the fewer worm eggs were present in his gut.

“The heaviest smokers, with everything else being equal, had about half the number of parasitic eggs in their stool, compared to everyone else,” Hagen says. …

THC — and nicotine — are known to kill intestinal worms in a Petri dish. And many worms make their way to the gut via the lungs. “The worms’ larval stage is in the lung,” Hagan says. “When you smoke you just blast them with THC or nicotine directly.”

Smithsonian reports that Birds Harness the Deadly Power of Nicotine to Poison Parasites:

Smoking kills. But if you’re a bird and if you want to kill parasites, that can be a good thing. City birds have taken to stuffing their nests with cigarette butts to poison potential parasites. Nature reports:

“In a study published today in Biology Letters, the researchers examined the nests of two bird species common on the North American continent. They measured the amount of cellulose acetate (a component of cigarette butts) in the nests, and found that the more there was, the fewer parasitic mites the nest contained.”

Out in the State of Nature, parasites are extremely common and difficult to get rid of (eg, hookworm elimination campaigns in the early 1900s found that 40% of school-aged children were infected); farmers can apparently use tobacco as a natural de-wormer (but be careful, as tobacco can be poisonous.)

In the pre-modern environment, when many people had neither shoes, toilets, nor purified water, parasites were very hard to avoid.
Befoundalive recommends eating the tobacco from a cigarette if you have intestinal parasites and no access to modern medicine.

Here’s a study comparing parasite rates in tobacco workers vs. prisoners in Ethiopia:

Overall, 8 intestinal parasite species have been recovered singly or in combinations from 146 (61.8 %) samples. The prevalence in prison population (88/121 = 72.7%) was significantly higher than that in tobacco farm (58/115 = 50.4%).

In vitro anthelmintic effect of Tobacco (Nicotiana tabacum) extract on parasitic nematode, Marshallagia marshalli reports:

Because of developing resistance to the existing anthelmintic drugs, there is a need for new anthelmintic agents. Tobacco plant has alkaloid materials that have antiparasitic effect. We investigated the in vitro anthelminthic effect of aqueous and alcoholic extract of Tobacco (Nicotiana tabacum) against M. marshalli. … Overall, extracts of Tobacco possess considerable anthelminthic activity and more potent effects were observed with the highest concentrations. Therefore, the in vivo study on Tobocco in animal models is recommended.

(Helminths are parasites; anthelmintic=anti-parasites.)

So it looks like, at least in the pre-sewers and toilets and clean water environment when people struggled to stay parasite free, tobacco (and certain other drugs) may have offered people an edge over the pests. (I’ve noticed many bitter or noxious plants seem to have been useful for occasionally flushing out parasites, but you certainly don’t want to be in a state of “flush” all the time.)

It looks like it was only when regular sanitation got good enough that we didn’t have to worry about parasites anymore that people started getting really concerned with tobacco’s long-term negative effects on humans.

Has eliminating hookworms made people fatter?

Okay, yes, obviously when you take the gut parasites out of people, they tend to gain weight immediately after. That’s not exactly what I’m talking about.

First, let’s assume you come from a place where humans and hookworms have co-existed for a long, long time. The hookworms that just about everybody in the American South used to have appear to have come from Africa, so I think it safe to assume that hookworms have probably been infecting a lot of people in Africa for a long time. I don’t know how long–could be anywhere from a few hundred years, if they’d come from somewhere else or recently mutated or something, or could be tens of thousands or hundreds of thousands of years, if they’ve just always been hanging around. Let’s just go with tens of thousands, because if it wasn’t them, it was probably something else.

Over a few thousand years of constant infection, you’d expect to develop some sort of biological response to minimize the chances of death–that is, your ancestors would have evolved over time to be less susceptible to the parasite. Obviously not getting the parasite is one great way to avoid getting killed by it, but let’s assume that’s not an option.

Another solution would be to just absorb food differently–faster, say, or in a manner that circumvents the parts of the gut that are normally infected. Over time, humans and parasites might tend toward an equilibrium–humans stepping up their digestion to make up for what’s lost to the parasite.

Remove the parasite, and equilibrium is lost: suddenly the human starts gaining a lot of weight, especially compared to people from populations that did not adapt to the parasite.

That functional a gut isn’t needed anymore, but it might persist for a while if there are no counter-evolutionary pressures.

Is Acne an Auto-Immune Disorder?

Like our lack of fur, acne remains an evolutionary mystery to me.

Do other furless mammals get acne? Like elephants or whales? Or even chimps; their faces don’t have fur. If so, everyone’s keeping it a secret–I’ve never even seen an add for bonobo anti-acne cream, and with bonobos’ social lives, you know they’d want it. :)

So far, Google has returned no reports of elephants or whales with acne.

Now, a few skin blemishes here and there are not terribly interesting or mysterious. The weird thing about acne (IMO) is that it pops up at puberty*, and appears to have a genetic component.

Considering that kids with acne tend to feel rather self-conscious about it, I think it reasonable to assume that people with more severe acne have more difficulty with dating than people without. (Remember, some people have acne well into their 30s or beyond.)

Wouldn’t the non-acne people quickly out-compete the acne-people, resulting in less acne among humans? (Okay, now I really want to know if someone has done a study on whether people with more acne have fewer children.) Since acne is extremely common and shows up right as humans reach puberty, this seems like a pretty easy thing to study/find an effect if there is any.

Anyway, I totally remember a reference to acne in Dr. Price’s Nutrition and Physical Degeneration, (one of my favorite books ever,) but can’t find it now. Perhaps I am confusing it with Nutrition and Western Disease or a book with a similar title. At any rate, I recall a picture of a young woman’s back with a caption to the effect that none of the people in this tropical local had acne, which the author could tell rather well since this was one of those tropical locals where people typically walk around with rather little clothing.

The Wikipedia has this to say about the international incidence of acne:

“Rates appear to be lower in rural societies. While some find it affects people of all ethnic groups, it may not occur in the non-Westernized people of Papua New Guinea and Paraguay.

Acne affects 40 to 50 million people in the United States (16%) and approximately 3 to 5 million in Australia (23%). In the United States, acne tends to be more severe in Caucasians than people of African descent.”

I consider these more “hints” than “conclusive proof of anything.”

Back when I was researching hookworms, I ran across these bits:

“The [Hygiene Hypothesis] was first proposed by David P. Strachan who noted that hay fever and eczema were less common in children who belonged to large families. Since then, studies have noted the effect of gastrointestinal worms on the development of allergies in the developing world. For example, a study in Gambia found that eradication of worms in some villages led to increased skin reactions to allergies among children. … [bold mine.]

Moderate hookworm infections have been demonstrated to have beneficial effects on hosts suffering from diseases linked to overactive immune systems. … Research at the University of Nottingham conducted in Ethiopia observed a small subset of people with hookworm infections were half as likely to experience asthma or hay fever. Potential benefits have also been hypothesized in cases of multiple sclerosis, Crohn’s Disease and diabetes.”

So I got to thinking, if allergies and eczema are auto-immune reactions (I know someone in real life, at least, whose skin cracks to the point of bleeding if they eat certain foods, but is otherwise fine if they don’t eat those foods,) why not acne?

Acne is generally considered a minor problem, so people haven’t necessarily spent a ton of time researching it. Googling “acne autoimmune” gets me some Paleo-Dieter folks talking about curing severe cases with a paleo-variant (they’re trying to sell books, so they didn’t let on the details, but I suspect the details have to do with avoiding refined sugar, milk, and wheat.)

While I tend to caution against over-enthusiastic embrace of a diet one’s ancestors most likely haven’t eaten in thousands or ten thousand years, if some folks are reporting a result, then I’d love to see scientists actually test it and try to confirm or disprove it.

The problem with dietary science is that it is incredibly complicated, full of confounds, and most of the experiments you might think up in your head are completely illegal and impractical.

For example, scientists figured out that Pellagra is caused by nutritional deficiency–rather than an infectious agent–by feeding prisoners an all-corn diet until they started showing signs of gross malnutrition. (For the record, the prisoners joined the program voluntarily. “All the corn you can eat” sounded pretty good for the first few months.) Likewise, there was a program during WWII to study the effects of starvation–on voluntary subjects–and try to figure out the best way to save starving people, started because the Allies knew they would have a lot of very real starvation victims on their hands very soon.

These sorts of human experiments are no longer allowed. What a scientist can do to a human being is pretty tightly controlled, because no one wants to accidentally kill their test subjects and universities and the like don’t like getting sued. Even things like the Milgram Experiments would have trouble getting authorized today.

So most of the time with scientific studies, you’re left with using human analogs, which means rats. And rats don’t digest food the exact same way we do–Europeans and Chinese don’t digest food the exact same way, so don’t expect rats to do it the same way, either. An obvious oversight as a result of relying on animal models is that most animals can synthesize Vitamin C, but humans can’t. This made figuring out this whole Vitamin C thing a lot trickier.

Primates are probably a little closer, digestively, to humans, but people get really squeamish about monkey research, and besides, they eat a pretty different diet than we do, too. Gorillas are basically vegan (I bet they eat small bugs by accident all the time, of course,) and chimps have almost no body fat–this is quite remarkable, actually. Gorillas and orangutans have quite a bit of body fat, “normal” levels by human standards. Hunter-gatherers, agriculturalists, and sedentary butt-sitters like us have different amounts, but they still all have some. But chimps and bonobos have vanishingly little; male chimps and bonobos have almost zero body fat, even after being raised in zoos and fed as much food as they want.

Which means that if you’re trying to study diet, chimps and bonobos are probably pretty crappy human analogs.

(And I bet they’re really expensive to keep, relative to mice or having humans fill out surveys and promise to eat more carbs.)

So you’re left with trying to figure out what people are eating and tinker with it in a non-harmful, non-invasive way. You can’t just get a bunch of orphans and raise them from birth on two different diets and see what happens. You get people to fill out questionnaires about what they eat and then see if they happen to drop dead in the next 40 or 50 years.

And that doesn’t even take into account the fact that “corn” can mean a dozen different things to different people. Someone whose ancestors were indigenous to North and South America may digest corn differently than someone from Europe, Africa, or Asia. Different people cook corn differently–we don’t typically use the traditional method of mixing it with lime (the mineral), which frees up certain nutrients and traditionally protected people from Pellagra. We don’t all eat corn in the same combinations with other foods (look at the interaction between the calcium in milk and Vitamin D for one of the ways which combining foods can complicate matters.) And we aren’t necessarily even cooking the same “corn”. Modern hybrid corns may not digest in exactly the same way as corn people were growing a hundred or two hundred years ago. Small differences are sometimes quite important, as we discovered when we realized the artificially-created trans-fats we’d stuck in our foods to replace saturated fats were causing cancer–our bodies were trying to use these fats like normal fats, but when we stuck them into our cell walls, their wonky shapes (on a chemical level, the differences between different kinds of fats can be mostly understood that they are shaped differently, and trans fats have been artificially modified to have a different shape than they would have otherwise,) fucked up the structure of the cells they were in.

In short, this research is really hard, but I still encourage people to go do it and do it well.


Anyway, back on topic, here’s another quote from the Wikipedia, on the subject of using parasites to treat autoimmunie disorders:

“While it is recognized that there is probably a genetic disposition in certain individuals for the development of autoimmune diseases, the rate of increase in incidence of autoimmune diseases is not a result of genetic changes in humans; the increased rate of autoimmune-related diseases in the industrialized world is occurring in too short a time to be explained in this way. There is evidence that one of the primary reasons for the increase in autoimmune diseases in industrialized nations is the significant change in environmental factors over the last century. …

Genetic research on the interleukin genes (IL genes) shows that helminths [certain kinds of parasites] have been a major selective force on a subset of these human genes. In other words, helminths have shaped the evolution of at least parts of the human immune system, especially the genes responsible for Crohn’s disease, ulcerative colitis, and celiac disease — and provides further evidence that it is the absence of parasites, and in particular helminths, that has likely caused a substantial portion of the increase in incidence of diseases of immune dysregulation and inflammation in industrialized countries in the last century. …

Studies conducted on mice and rat models of colitis, muscular sclerosis, type 1 diabetes, and asthma have shown helminth-infected subjects to display protection from the disease.”


Right, so I’m curious if acne falls into this category, too.

Why an African Parasite got named “American Killer”

The humble-but disgusting hookworm’s scientific name is “Necator americanus”–American Killer. (Actually, there are  several hookworm species, but if you live in the US, this is the one to worry aboutt.)

This parasite, like many others, originated in sub-Saharan Africa, where it still infects about 200 million people. East Asia has another 150 million infected.

Each worm lays lays 9,000 to 10,000 eggs per day in your bowels. You helpfully “deposit” these eggs–prior to indoor plumbing, somewhere on the ground. The eggs hatch, and a week later, the baby worms are ready to burrow their way into the foot of any poor sod unlucky enough to step on them.

The babies go into your bloodstream, burrow into your lungs and throat, and then get coughed and swallowed down into your guts, where they make themselves comfortable, drinking your blood and laying more eggs.

Each individual worm only sucks a drop of blood per day, but no one has just one worm; your intestines soon fill with thousands of the bastards.

One of the interesting side effects of horrible infections and diseases is that, given enough exposure, a population will eventually evolve some sort of immunity. Sickle Cell Anemia, while imperfect, is one such adaptation, rendering some folks in malaria-prone regions less susceptible to the disease. People who do not have these adaptations are easy prey for the disease; so Smallpox, vicious murderer of Europeans, tore through native communities like an atomic bomb, killing some 90% of everyone it got near.

So when some idiot had the bright idea to import slaves from Sub-Saharan Africa, not only did millions of humans suffer and die, but Necator americanus jumped the Atlantic and found a new, less resistant host to infect. Poor southern whites, barefoot and often malnourished (un-nixtamalized corn is a culprit here), became unwitting hosts for an organism against which they had no defenses.

No one knew what was going on. The germ theory of disease hadn’t been developed, and no one was autopsying “white trash” kids when they died.

Historian Thomas D. Clark claims, “By modern American Standards of physical, mental, and moral fitness… more than half of the Johnny Rebs who shelled the woods at Shiloh, Chancellorsville, and Gettysburg, or stood with Pemberton at Vicksburg, might have been kept at home. No one can say how much Pellagra and hookworm helped to sustain the union.” (Quoted in “Parasites: Tales of Humanity’s Most Unwelcome Guests,” by Rosemary Drisdelle.)

A later de-worming campaign in the South (after the parasite was discovered) estimated that 40% of children (of both races, I assume) were infected.

The hookworm turned against the Union, though. As Driselle describes, it passed from infected Southerners to Northerners in the horrifying conditions of the POW camps.

At Andersonville, 13,000 people died of starvation, malnutrition, and disease. Driselle estimates that a third were felled by hookworms, but it is hard to imagine that anyone forced to drink Andersonville’s feces-laden stagnant water would have escaped infection.

It was only in the 1880s and 90s that people started putting together the hookworm infection pieces; in the early 1900s, hookworm eradication campaigns started in the American south. (Tips: Wear shoes; Poop in a toilet.) The parasite that had taken down so many Americans was thus formally dubbed the American Killer, Necator americanus, a great anti-disease naming move if I ever saw one, though not quite as great as the bee parasite, Varroa destructor. I mean, do you want something called V. destructor infecting your bees? Obviously not!

(Seriously, who names a disease AIDS? That makes it sound helpful. Should have named it MURDER disease or something like that.)

Hookworm eradication had notable effects on things like health, school performance, and not dying, which is almost always a good thing. (About that time we also figured out that you can’t live on a 100% corn diet for very long.)


From time to time, people ungracefully express their dislike of others in terms fear of disease, describing foreigners as “dirty” or otherwise infectious. While such sentiments are crude and insulting, the fact remains that even the most wonderful of strangers may in fact be carrying diseases to which you have no immunity. And with diseases, like devils, better the disease your ancestors might have survived than one they didn’t.