https://cdnph.upi.com/ph/st/th/9811780937411/2026/upi/1bbf405fc9c52bc2a22aaaa7dc3febf7/v1.5/USDA-confirms-two-more-cases-of-flesh-eating-screwworm.jpg" /> The U.S. Department of Agriculture says the United States' food supply is not at risk after confirming two more cases of the New World screwworm.