USDA confirms 6th case of New World screwworm in US

The latest case is in a calf in La Salle County, Texas.

Brown and white calf standing in green pasture with adult cattle and trees in background
oleksandr.zaiats | BigStock.com

The U.S. Department of Agriculture’s (USDA) National Veterinary Services Laboratories confirmed a new case of New World screwworm (NWS) in a calf in La Salle County, Texas, bringing the total cases of NWS in the United States to six.

USDA is working closely with the Texas Animal Health Commission (TAHC) to respond and further investigate the case. The joint federal-state field teams have already expanded surveillance and response measures in the area. 

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