Human case of NWS identified in the U.S.

A travel-related case of New World screwworm in a human has been confirmed by the Centers for Disease Control and Prevention confirmed. The individual who contracted the parasite had been in Guatemala before traveling to Maryland and receiving medical treatment.  

Although the presence of NWS on United States soil is concerning for the livestock industry, medical and agricultural officials believe the situation is contained and the danger for the livestock industry is not more elevated than it was previous to the announcement of a confirmed case.  

This case is the closest contraction to the U.S.-Mexico border, but it is not the first to be announced. Previously, two American traveler cases had been identified. One person contracted NWS in Peru and another in Columbia. 

“NCBA is aware of a New World screwworm case detected in a person traveling from abroad into Maryland,” said Colin Woodall, CEO of the National Cattlemen’s Beef Association. “The case was quickly identified and handled by the CDC in accordance with their protocols. Based on what has been shared with state animal health officials, we do not see any elevated risk to the livestock industry at this time. We appreciate the diligence of human health authorities. This case was quickly addressed thanks to existing protocols, and we are thankful for the ongoing coordination between the CDC, state departments of health, state animal health officials, and USDA.” 

Lacey Vilhauer can be reached at 620-227-1871 or [email protected].