A flesh-eating parasitic fly is once again threatening the nation’s livestock, after being eradicated from the U. S. six decades ago.
Source: [MarketWatch](https://www.marketwatch.com/story/ranchers-and-vets-say-this-4-treatment-for-cattle-will-help-them-beat-back-flesh-eating-screwworm-436ebbeb?mod=mw_rss_topstories)