Avian Flu Wiped Out Poultry. Now the Screwworm Is Coming for Beef.

Avian Flu Wiped Out Poultry. Now the Screwworm Is Coming for Beef.

The parasitic fly that attacks warm-blooded animals was eliminated from the United States in the 1960s, but it’s creeping toward the Texas-Mexico border. continue reading...

Author
The New York Times

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