Septicaemic plague occurs when infection spreads directly through the bloodstream, while the pneumonic form is the most virulent but least common.
肺炎鼠疫是不需要跳蚤或动物媒介,而是由空气吸入受感染飞播。
Septicaemic plague occurs when infection spreads directly through the bloodstream, while the pneumonic form is the most virulent but least common.
肺炎鼠疫是不需要跳蚤或动物媒介,而是由空气吸入受感染飞播。
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