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

"Maggots cause extensive damage by tearing at the hosts’ tissue with sharp mouth hooks," according to the APHIS website ... infested with NWS," says the CDC. "Wounds as small as a tick bite ...

The U.S. is putting a temporary stop on livestock imports through southern border ports of entry to try and eradicate the spread of the deadly parasitic new world screwworm.

The U.S. Centers for Disease Control and Prevention (CDC) also notes, "If you have an NWS infestation ... including ...

Effective immediately, the USDA said, the agency’s Animal Plant Health Inspection Service (APHIS) and U.S. Customs ... for Disease Control and Prevention (CDC) said NWS was eradicated in the ...