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Frequently Asked Questions (FAQ) About Plague

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How long can plague bacteria exist in the environment?
Yersinia pestis is easily destroyed by sunlight and drying. Even so, when released into air, the bacterium will survive for up to one hour, depending on conditions.

Is a vaccine available to prevent pneumonic plague?
Currently, no plague vaccine is available in the United States. Research is in progress, but we are not likely to have vaccines for several years or more.

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WebMD Public Information from the CDC

Reviewed by Charlotte E. Grayson Mathis, MD on February 01, 2003

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