The USDA confirmed two new cases of the New World screwworm in Texas, bringing the state's total infections to four.The flesh-eating parasite, which threatens livestock and pets, was eradicated in the US decades ago but re-emerged following cases in Mexico.Federal officials are deploying sterile flies to suppress the population while Canada has temporarily banned live cattle imports from Texas.Secretary
Brooke Rollins is visiting the Livestock Insects Research Laboratory to oversee the intensified containment and eradication strategy.