Good thread and another reason I may never go outside again. These things can get into human beings too. Not just cows.
Landra Graf
1/ Five cases of New World screwworm have now been confirmed in the U.S., Texas has declared an emergency, and Canada immediately restricted livestock imports. Most people had never heard of screwworm until last week (or maybe just now). That's because we eradicated it from the U.S. in 1966.🧵
