What is pneumonic plague and how does it spread?

The death of a worker from a Russian lab that researches plague has prompted questions about the disease.

原文标题：What is pneumonic plague and how does it spread?

溯源：开源情报 ｜ 可信度：C（中（公开媒体报道））

信源：BBC 世界 ｜ 阅读原文

The death of a worker from a Russian lab that researches plague has prompted questions about the disease.

—— 开源情报 · 综合 · 可信度C