Why Did The Plague Stop Affecting England So Badly After 1666?

The last major pandemic outbreak of bubonic plague was in 1665/1666, the year of the Great Fire of London. There are stories that the fire was somehow responsible, but, the real reason is a lot less romantic.

The plague bacterium, Yersinia pestis, is carried fleas that live on the Norwegian black rat. This species of rat was very common in Medieval England and it lived amongst people and their livestock in towns and villages. The rats were unaffected by the flea bits or by the bacteria, but when their fleas jumped off them on off on to people, the disease spread.

The end of the plague was brought about by the demise of the black rat. In the 1660s, a new species of rat, the brown rat was introduced into Europe and it rapidly overran the territory, ousting the black rat. Fortunately for the human population, the brown rat did not carry the fleas that bore the plague infection, so the cycle was broken.

The great fire of London partly helped but brown rats also helped

Now scientists have been discoverd and we know all about germs and what happen the black death or plauge started in asia then sperd to europe it reached london/england in 1348 and lasten 300years the poeplle tose days thought they wreer being punished by god for sinning but the diease was actuallly speread by the fleas jumpiing on to the rats and sucking the dieasd blod the jumping onto a human and biting tem.the diease was alos spread by humans coughing on each other .the diease wiped out over half of the populationin london and finaly ended during the reign of Charles II the great fire of London did at last kill the rats that spread the plague along with thousands of people

Those immune to the bacteria, where the survivors, those that weren't died

During the reign of Charles II the great fire of London did indeed kill the rats that spread the plague along with thousands of people. It was a windy day in London leaving little time for the rats to escape quickly.