The Norway rat is very common in cities as well as rural areas. It usually lives close to humans and may carry fleas infected with bubonic plague bacteria. The plague is transmitted to humans through the bite of an infected flea.
Bubonic Plague Pictures: Norway Rat
Photos of Bubonic Plague Infections and Transmission
From Mary Kugler, R.N., former About.com Guide
Updated February 13, 2009
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
The Norway rat, also called "brown rat" or "sewer rat," can carry fleas infected with bubonic plague.
Photo courtesy of the CDCMore About Bubonic Plague
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