The Plague: Don’t kill the Cats

As the deaths mounted and the streets filled with waste, Londoners noticed that dogs and cats were everywhere in the city. And so the order went out from the Lord Mayor.

Kill the dogs and cats.

The Chamberlain of the City paid the huntsmen, who slaughtered more than 4,000 animals. But the dogs and cats were chasing the rats that were feeding on the waste — and the rats were carrying the fleas that transmitted the Plague. Now spared from their predators, the rats spread the affliction even more fiercely.