U.S. Reports First Human Case of Flesh-Eating Screwworm Post-Travel

The US has confirmed its first human case of New World screwworm, a flesh-eating parasite, in a traveler from El Salvador, prompting increased vigilance as the parasite's northward spread threatens livestock and public health. The screwworm, historically eradicated in the US through sterile insect techniques, is re-emerging in Central America and Mexico, leading to new control measures including the construction of a sterile fly production facility in Texas.