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c0lo writes:

Speaking of bugs, Ars Technica carried a story about the resurgence of tropical diseases in south Texas (with a title almost inviting Betteridge's law: "Can America cope with a resurgence of tropical disease?").

One rainy Friday morning in March 2015, Dr. Laila Woc-Colburn saw two patients with neurocysticercosis (a parasitic infection of the brain) and one with Chagas disease, which is transmitted by insects nicknamed ‘kissing bugs.’ Having attended medical school in her native Guatemala, she was used to treating these kinds of diseases. But she was not in Guatemala anymore—this was Houston, Texas.

[...] “While we were calling them neglected tropical diseases, the ‘tropical’ part is probably a misnomer,” says Hotez. “Most of the world’s neglected tropical diseases are in wealthy countries. It’s the poor living among the wealthy.”

Once aggressive government-funded eradication programs finally halted local malaria transmission, the optimism of the 1950s and early 1960s—combined with the advent of life-saving antibiotics and anti-parasitic drugs—made infectious diseases seem like ancient relics.
“People thought that specializing in infectious diseases would be a waste of time because they would soon be history,” says Lucas Blanton, an infectious disease physician at the University of Texas Medical Branch.

[...] Edwards knows a few things about Chagas: it is caused by the parasite Trypanosoma cruzi and spread by a group of insects called Triatoma, or ‘kissing bugs’ (because they like to bite near the mouth). .... Chagas is a major problem in Latin America, where an estimated 8 million people are infected.

[...] Edwards’ new patient, however, had never been to Latin America. She had never even left the USA. She was, Edwards explains, “your All-American girl,” hardly a candidate for a disease that mainly infected poor, rural populations in Central and South America. ... The case has stayed with Edwards for several reasons, the main one being the mystery of how the girl became infected if she’d never left the country. But south Texas is home to the same kissing bugs that transmit Chagas. The answer, then, had to be this: she had been infected with Chagas in Texas. And she was unlikely to be the only one.

[...] Results from studies that tested donated blood for Chagas support the idea that it is a major problem in Texas. A 2014 study showed that one out of every 6,500 people who donated blood screened positive for Chagas—almost 50 times more than the CDC’s estimate that one in 300,000 Americans was infected.

Original Submission