The screwworm larva has a fang-like lower jaw protruding from its mouth.
Scott Kamazin/Alamy
Countries in the Americas have spent billions of dollars trying to control the New World screwworm since the meat-eating parasite devastated cattle in the United States in the 1950s.
But a recent surge in cases in Central America suggests that containment efforts may be failing, putting the region’s food supply and cattle supplies worth tens of billions of dollars at risk.
What is a screwworm?
New World Screwfly (Cochliomia hominivorax) It is an insect endemic to South America…
Source: www.newscientist.com
