The World Health Organization divides plague into two types: pneumonic plague and bubonic plague.

Pneumonic plague is an infection caused by Yersinia pestis bacteria that invades the lungs.

Bubonic plague is an infection caused by the Yersinia pestis bacterium that invades lymph nodes and other tissues.

Fleas are the intermediate hosts of plague and carry the bacterium Yersinia pestis.

Early symptoms include fever, headache, nausea, vomiting, etc.

As the disease progresses, the lymph nodes can swell and form painful lumps.

Medication is the most common treatment method.

Supportive care refers to supporting a patient’s recovery by maintaining stable vital signs.

Environmental cleaning is an important measure to prevent plague.

Personal protective measures are equally important.

The plague vaccine is a preventative measure that helps the body produce antibodies.

Vaccines can effectively control the spread of the epidemic by providing herd immunity in outbreak areas.

The World Health Organization has developed guidelines for the prevention and control of plague.

Governments are stepping up monitoring and reporting, as well as vaccination campaigns.

Outbreaks can cause economic losses and social panic.

Proper publicity and education can help people understand plague and reduce panic.

The Black Death is one of the most famous plague outbreaks.

The historical background of plague reminds us to pay attention to plague prevention and control.

The development of new drugs and vaccines could improve the effectiveness of plague treatments.

Using modern technology to monitor and track plague can better control the epidemic.