Two more animal cases of the flesh-eating New World screwworm have been detected in Texas, bringing the total to four, the U.S. Department of Agriculture announced Monday.The newest cases of New World screwworm (NWS) appeared in a calf in La Salle County and a dog in Andrews County, according to the USDA. Two cases were confirmed last week in calves in Zavala County, Texas.

A second case of the flesh-eating screwworm parasite has been confirmed in Texas. This new detection is just miles from the first U.S. case in decades. The parasite deposits eggs…

WASHINGTON, June 6 — The US Department of Agriculture (USDA) said Friday it has detected a second case of a dangerous livestock pest whose flesh-eating larvae can kill…