Concern Over the Return of New World Screwworm to the U.S.

The New World screwworm, a flesh-eating fly affecting livestock and other animals, has re-emerged in the United States. This occurs 60 years after these pests were officially eradicated from the country.

The latest incident was identified in a 3-week-old calf in Texas, federal officials reported on a recent Wednesday night.

Past efforts saw an aggressive campaign eliminating the flies from North and Central America. These flies, however, have persisted in South America and have slowly returned, approaching the U.S. border.

Screwworms have historically impacted cattle significantly. This resurgence may increase pressures on cattle farmers, potentially raising beef prices. Caleb Hubbard, an entomologist at New Mexico State University, stated, It has the potential to be damaging, very damaging, to our livestock industry.

The pests do not exclusively target cattle. They also threaten wildlife, pets, and, in rare cases, humans. Although the infestation is a concern, federal and state authorities are working to control its spread in Texas. They stress that the risk to the general public is currently low.

Brooke Rollins, the agriculture secretary, urged cooperation at a recent briefing, saying, If we all work together and follow animal treatment and the movement restriction guidance, there is no reason to believe that this incursion will result in any sort of establishment of the pest.