What you need to know about plague:
• There are three forms of plague, all caused by the bacterium Yersinia pestis.
• The three forms of plague are bubonic, septicemic and pneumonic.
dw.com
The death of a Russian lab worker has raised concerns over pneumonic plague
A worker at a plague research institute in Siberia has died, and nearly 200 of her contacts are under medical observation. Russian authorities deny a link to the bacterial infection. The US is monitor...
