Many believed it was a judgement from God - millions dead as punishment for the sins of mankind. In Britain alone, the Black Death wiped out up to half of the population when it struck between ...

Yersinia pestis, the bacterium that causes plague ... In this study they show how close examination of the symptoms described suggested that this was indeed the disease now known to be caused ...

In this new study they show how close examination of the symptoms described suggested that this was indeed the disease now known to be caused by the bacterium Yersinia pestis, whose evolutionary ...

High fever, coughing, body aches, chills, and fatigue are possible symptoms of influenza B, but they may also indicate other conditions. A healthcare professional can provide an accurate diagnosis.