A suspected case of bubonic plague has been reported to Chinese authorities.
What does it do?
A person usually becomes ill with bubonic plague between two and six days after being infected.
Along with the tender, enlarged lymph nodes, that can be as large as a chicken egg, other symptoms include fever, chills, headache, muscle aches and tiredness.
Plague can also affect the lungs, causing a cough, chest pain and difficulty breathing.
The bacteria can also enter the bloodstream and cause a condition called septicaemia or sepsis, which can lead to tissue damage, organ failure and death.
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