Deadly Screwworm Parasite Found in US Threatens Cattle Herd (2)

A deadly cattle parasite was confirmed in the US for the first time in nearly a decade, posing the latest threat to a US herd already at its lowest level in 75 years.

The US Department of Agriculture said a suspected case from South Texas, which was reported Wednesday, tested positive for the new world screwworm. The affected animal in Zavala County is a three-week-old calf, and the larvae was detected in its umbilical area.

Agriculture Secretary Brooke Rollins said on a late Wednesday call with reporters that this is the only case that the agency is tracking right now, ...