The Pasteur Institute of Madagascar confirmed yesterday that a Madagascar village had lost at least twenty people to a deadly outbreak of the bubonic plague. Today, the BBC confirmed with officials that two cases of pneumonic plague – considered deadlier and more virulent than bubonic plague – have also been reported.
Above: Yersinia pestis, by Rocky Mountain Laboratories/AP via Wikimedia Commons
It bears mentioning that the bubonic and pneumonic plagues are both caused by the bacterium Yersinia pestis, the primary difference being the location of the infection; bubonic plague refers to an infection of the lymphatic system, pneumonic plague an infection of the respiratory system. Via the BBC: