The fleas move from rats to humans who become infected by Y. pestis when the fleas bite. The bacteria move quickly from the bite site into the lymphatic system, causing acute inflammation of the lymph ...

Caused by the bacterium Yersinia pestis, the bubonic plague has killed ... The main symptom of bubonic plague is swollen lymph nodes, usually in the neck, groin, thighs and armpits.

The genus Yersinia, a member of the family Yersiniaceae, is currently composed of 26 species, including three human pathogens: the causative agent of plague, Yersinia pestis, and enteropathogenic ...

Three of the world’s seven known pandemics have been caused by the plague, a bacterial infection triggered by the Yersinia pestis ... by swollen and painful lymph nodes around the flea bite.

Oxford team reports hopeful results in trials as military experts say UK should stock supplies of Black Death inoculation ...