The Deadly Parasite Threatening Cattle and Wildlife

Since the 1970s, the screwworm has largely stayed out of the United States, kept at bay by an eradication campaign that has prevented the large-scale loss of livestock and wildlife and saved the cattle industry $2.3 billion a year. But after breaching a biological barrier in Panama in 2022, the flesh-eating parasite is at risk of returning, spurring the United States and Mexico to invest in increased biological countermeasures, surveillance, detection and scientific research. Read about it here.