Arizona Dog Tests Positive For Screwworm As Fears Of Livestock Crisis Rise
The detection of the once-eradicated flesh-eating fly in an Arizona dog marks its spread to a third U.S. state, stoking fears for an already depleted cattle herd.
<p>The detection of the once-eradicated flesh-eating fly in an Arizona dog marks its spread to a third U.S. state, stoking fears for an already depleted cattle herd.</p>