The first U.S. human case of infection from the New World screwworm, a flesh-eating parasite, was recently detected in Maryland .

The New World screwworm is a fly larva that infests the living tissue of warm-blooded animals , including humans, causing a painful condition known as myiasis, according to a June report from the USDA Animal and Plant Health Inspection Service (APHIS),

Myiasis is a parasitic infestation of fly larvae (maggots) in human tissue, according to the U.S . Centers for Disease Control.

According to information from the CDC and Maryland Department of Health, a resident experiencing myiasis from a case of New World screwworm infection had recently returned to Maryland from El Salvador, which is currently experiencing an outbreak of NWS.

This is the first human case of

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