Plague is an infectious disease caused by bacteria called Yersinia pestis. They are found mainly in rodents, particularly rats, and in the fleas that feed on them.
Plague is a serious infectious disease caused by a type of bacterium named Yersinia pestis. These bacteria are usually found in rats, rodents and other mammals.
In humans, it is transmitted through fleas. It is also known as Black Plague or Black death, as it can kill a person affected by it, if not treated carefully.
There are 3 forms of plague, in which "bubonic plague" is the most common and dangerous one.
