Health officials have confirmed the United States’ first human case of New World screwworm infection, a rare but serious parasitic disease that has prompted alerts across both public health and ...

University of California Riverside researchers are launching a preemptive strike against a parasitic, flesh-eating fly’s threatened return to the state.

Although cases are closing in on the U.S., the New World screwworm isn’t likely to create outbreaks in Canadian livestock, ...