A Nasty Fly Bite
A sore marks the telltale path of a troublesome parasite.
As a child, I was fascinated by a scar on my grandfather’s cheek. “How’d you get that?” I asked, touching the shallow depression as we settled into a comfortable chair to read a book.
“Where I grew up, everyone had a scar like that,” replied my grandfather, a native of southern Turkey. “First a fly would bite, then you got a sore. After a few months, the skin healed, and you never got the sore again.”
Twenty-five years later, as a researcher in B...
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