"Inside the U.S. and Panama’s long-running collaboration to rid an entire continent of a deadly disease."
"The Florida Keys are a place where deer stand next to children at school-bus stops. They lounge on lawns. They eat snacks right out of people’s hands. So when the deer began acting strangely in the summer of 2016, the people of the Keys noticed. Bucks started swinging their heads erratically, as if trying to shake something loose.
Then wounds opened on their heads—big, gaping wounds that exposed white slabs of bone. Something was eating the deer alive.
That something, lab tests would later confirm, was the New World screwworm, a parasite supposed to have been eradicated from the United States half a century ago. No one in the Keys had ever seen it. If you had asked an old-time Florida rancher though, he might have told you boyhood stories of similarly disfigured and dying cattle. In those days, screwworms found their way into cattle through any opening in the skin: the belly buttons of newborn calves, scratches from barbed wire, even a tick bite. Then they feasted.
Screwworms once killed millions of dollars’ worth of cattle a year in the southern U.S. Their range extended from Florida to California, and they infected any living, warm-blooded animal: not only cattle but deer, squirrels, pets, and even the occasional human. In fact, the screwworm’s scientific name is C. hominivorax or “man eater”—so named after a horrific outbreak among prisoners on Devil’s Island, an infamous 19th-century French penal colony in South America."
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