Key facts
- The first U.S. case of New World screwworm in decades was detected in a calf in Zavala County, Texas.
- A livestock quarantine has been implemented.
- The U.S. Department of Agriculture is working to prevent the parasite's spread.
- Officials state the parasite is not a food safety risk and is not transmissible like a virus.
- Texas Governor Greg Abbott declared a state of disaster and asked the federal government to speed up the completion of a sterile fly production facility.
