What to know about the New World screwworm fly and its reappearance in the US (opens original article in a new tab)

The New World screwworm fly has reappeared in the U.S., posing a threat to the $113 billion cattle industry after more than 50 years without cases.

• New World screwworm fly reemerged in the U.S.
• Threatens the $113 billion cattle industry
• Last occurrence was over 50 years ago