As Texas ramps up efforts to stop the spread of a flesh-eating parasite, health officials confirmed Monday the first U.S. case of the New World screwworm (NWS) in a human. The case involved a patient returning from travel in El Salvador,

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.

The CDC confirmation came about a week and a half before the U.S. agriculture secretary said Texas would host a sterile fly facility to slow the screwworm spread.