Yes. Fleas infected with yersinia pestis cause the Black Death.
Yes, fleas can transmit diseases to humans, such as typhus and plague, through their bites.
The fleas on rats. The rats had a disease that the fleas got then jumped onto the people to spread the desease.
They bite which is a cut that is irritating and can become infected and some carry disease
The fleas; but the rats carried the fleas. So in a sense both.
Fleas bite and could produce disease to people.
A flea which had a bacteria in his saliva. When it bit a person a little saliva entered the wound.
No, just bight them. Unless the fleas have a disease, but I'm not sure!
Rats to fleas, fleas to humans
Fleas transmitted the disease from rats to humans.
the plage was spread throughout animals, which carried fleas, and fleas carried the disease. china did not carry the disease, because they had boiling water.
Bubonic plague and Cat Scratch disease can be carried by fleas.
Fleas can indeed infest short-haired dogs. Fleas can live on dogs of any hair length or hair color. They can also infest many other types of animals, including cats, ferrets, rabbits, and rodents. Fleas are external parasites that bite and feed on the blood of animals. They are also capable of biting and feeding off of the blood of people. These parasites are problematic because they can cause a variety of illnesses for both animals and people. Many animals are allergic to fleas and the resulting skin disease can be painful for them. In addition, fleas can cause localized areas of hair loss, inflammation and scabs known as "hot spots". Tapeworms can be carried by fleas and passed to animals that become infested with fleas. Fleas also play a pivotal role in the transmission of diseases such as plague and cat scratch disease.