What is the English name of the Black Death?

pestilence

Medical department

infectious disease

Common etiology

Rat flea bite is the main transmission route of Yersinia pestis.

common symptom

Fever, toxemia, lymphadenopathy, pneumonia, bleeding.

transmissibility

have

Transmission routing

Rat flea bites, droplets, skin wounds, digestive tract infections

Yersinia pestis is a serious infectious disease mainly spread by rat fleas, and it is a natural focus disease widely spread among wild rodents. The clinical manifestations are fever, severe toxemia, lymphadenopathy, pneumonia and bleeding tendency. There have been many pandemics in the history of the world, and tens of millions of people died. There were also many pandemics before the liberation of China, and the mortality rate was very high.