“A challenge we thought we had beaten in the 1960s.”
Yeah, sort of like Measles, you dolt.
A flesh-eating New World screwworm was confirmed in a calf in Texas this week, news that could seriously damage the U.S. livestock industry and raise already high beef prices.
The parasitic larvae of the screwworm fly typically enter an animal through an open wound and feed on their flesh, eventually killing the animal if left untreated, according to the U.S. Department of Agriculture. It is rare for people to contract screwworm, and they do not pose any food safety issues.
Weather and climate have kept screwworms from entering the U.S., but climate change is extending its range northward, according to the National Institutes of Health. Warmer climates would also increase cattle tick populations and their range, which would also increase the outbreak potential for screwworm.
The parasite’s presence in the U.S. could be the result of a warming climate. Screwworms are cold-sensitive — they can’t survive unless low temperatures are regularly above freezing, year-round, according to Drovers, the oldest livestock publication in the U.S. Ideal conditions for adult flies are temperatures between 77 and 86, with relative humidity between 30-70%.
Continue reading “Are We Screw (Wormed)?”

