A surface protease helps Yersinia pestis plow its way through the body during pneumonic plague. During the 14th through 16th centuries, Y. pestis caused a pandemic of plague that killed a third of ...

But this year it has developed into the deadlier pneumonic version and spread to much more populated areas, including the capital. Madagascar plague: WHO in huge release of antibiotics Madagascar ...

It usually kills the patient within five days. Pneumonic, which infects the lungs, making people cough up blood. This usually kills within three days. The disease is so contagious that people ...

Septicemic plague infects the bloodstream. Pneumonic plague, which can be passed from human to human, occurs when the bacillus moves into the pulmonary system, choking off breathing. Infection in ...

There are two other forms of the plague: septicemic plague (which spreads through the whole body) and pneumonic plague (which infects the lungs). Bubonic plague causes painfully swollen lymph ...