WORLD HISTORY

Detailed explanation-1: -Bubonic plague is an infection spread mostly to humans by infected fleas that travel on rodents. Called the Black Death, it killed millions of Europeans during the Middle Ages. Prevention doesn’t include a vaccine, but does involve reducing your exposure to mice, rats, squirrels and other animals that may be infected.

Detailed explanation-2: -The rodents and their fleas were thought to have spread a series of outbreaks in 14th-19th Century Europe. But a team from the universities of Oslo and Ferrara now says the first, the Black Death, can be “largely ascribed to human fleas and body lice".

Detailed explanation-3: -Black rats were the most common at this time, and carried the bacteria called Yersinia pestis, which caused the plague. The rats then spread it to fleas that lived on their bodies. The fleas would drink the blood of infected rats, swallowing harmful bacteria. They then passed the infection onto humans by biting them.

Detailed explanation-4: -Plague is an infectious disease caused by the bacteria Yersinia pestis, a zoonotic bacteria, usually found in small mammals and their fleas. It is transmitted between animals through fleas. Humans can be infected through: the bite of infected vector fleas.

Detailed explanation-5: -Specifically, historians have speculated that the fleas on rats are responsible for the estimated 25 million plague deaths between 1347 and 1351. However, a new study suggests that rats weren’t the main carriers of fleas and lice that spread the plague-it was humans.