Federal officials confirmed a human case of a flesh-eating screwworm parasite in Maryland, the first in the United States in years.

The first human case of the flesh-eating screwworm has been detected in the US, but Texas has already been on the lookout for the parasite.

A rare case of travel-related New World screwworm was identified in Maryland in a patient who traveled from El Salvador, a spokesman from the US Department of Health and Human Services said.