Fleas carrying the bubonic plague have been found in Arizona
- Health officials in two Arizona counties reported that fleas tested positive forYersinia pestis, the bacteria that causes the plague.
- Plague regularly appears in the American Southwest, where it often kills rodents like prairie dogs but occasionally infects people.
- There were two human cases of the plague in New Mexico earlier this summer.
Why plague persists
Published August 16, 2017
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