The first human case of New World Screwworm, a parasitic infestation caused by fly larvae, has been confirmed in the U.S. The patient recently returned from El Salvador. The CDC and Maryland's health department investigated. While the risk to the public is considered low, this infestation causes severe damage to living tissue. It's usually found in South America and the Caribbean, affecting livestock and occasionally humans with open wounds. Treatment involves removing the maggots, and prevention is key. The U.S. is actively working to prevent its spread.

Prepared by Olivia Bennett and reviewed by editorial team.