Author: Richard Wall, Emeritus Professor, School of Biological Sciences, University of Bristol

The New World screwworm (Cochliomyia hominivorax) has now reached a Mexican state that borders on Texas. Judy Gallagher, CC BY A flesh eating parasitic fly has spread north through Mexico to within a few hundred miles of the US southern border. The New World screwworm (Cochliomyia hominivorax) lays its eggs in open wounds and in […]