A human case of New World screwworm in the U.S. was confirmed by HHS and CDC officials. (Denise Bonilla/U.S. Department of Agriculture via AP) U.S. Department of Agriculture

A human case of New World screwworm myiasis in the U.S. has been confirmed by officials from the Department of Health and Human Services and the Centers for Disease Control and Prevention. The NWS infestation was identified in a Maryland resident who had recently returned from El Salvador. This person has since recovered, and surveillance programs have not detected any screwworm flies in the surrounding areas. Thus, the immediate threat of an outbreak appears to be minimal.

What Is New World Screwworm?

Screwworms, or screwworm flies, are part of the blow fly family. The New World screwworm, known scientificall

See Full Page