It’s been decades since the New World Screwworm was a problem in the U.S., but the flies are now advancing northward from ...

A threat to American livestock – the New World Screwworm (NWS) fly, which has been considered eradicated from the country ...

The New World screwworm isn't a new species, but the flesh-eating maggots are certainly disturbing. Here's what Tennesseans need to know.

Fearing a resurgence of the New World Screwworm parasite in the US, the Department of Agriculture block livestock imports from Mexico ...