A person’s blood type is determined by their parent gene. Previously, before being known to know the blood type, the medical world considers all blood types to be the same. Here are The ways How To Find Out Your Blood Type

A plague or pestilence is a disease caused by the Yersinia pestis bacterial infection. A person may get this disease if it is bitten by a flea (insect) exposed to the Y. Pestis bacteria, after which the insects bite infected animals. The flea that transmits the bubonic plague disease by sucking the rodent blood. Here are The Bubonic Plague Transmission, Causes, Symptoms, and When To See A Doctor