The number of confirmed New World screwworm infestations in the United States has risen to 12, according to the U.S. Department of Agriculture, as state and federal officials continue efforts to contain the flesh-eating parasite.
Eleven infestations have been confirmed in Texas and one in New Mexico.
The latest Texas case was identified in a sheep in Sutton County, about 135 miles northwest of San Antonio. The detection adds to growing concerns that the parasite is spreading beyond South Texas and into other parts of the state…