Some can. Humans have their own species of fleas, Cohen said, but they can't live long off of people. She said a main determinant if you have fleas are long itchy red bites on the skin.
But a team from the universities of Oslo and Ferrara now says the first, the Black Death, can be "largely ... rats airborne transmission fleas and lice that live on humans and their clothes ...
Scratching the bites can cause an infection ... It’s important to take animals to a vet if they have fleas. Fleas prefer to live on animals, such as dogs and cats, but they could take up ...