its possible that the strain changed so it didnt affect humans or humans became immune to it, there was some guy a couple of years ago who got the black plague
it was carried by rats which caught the disease from parasites
the disease was carried by rats who were on the ship
The flea was a parasite on a black rat which carried the disease
The Black Plague is a disease that spread throughout Europe and Asia. It was carried to Europe on Asian merchants' ships which had black rats which carried fleas which carried a type of bacteria. It killed about a third of the people in Europe.
It was spread by fleas carried by Black rats.
The disease that killed millions of people and was carried by fleas on rats was the bubonic plague, also known as the Black Death. This pandemic devastated Europe in the 14th century, causing widespread death and societal disruption.
The fleas; but the rats carried the fleas. So in a sense both.
Rats were taking over merchant ships that sailed from country to country. These rats carried a flea which carried the disease. As you can imagine, the disease began to spread everywhere the ships went.
It's because the rats that carried the fleas that carried the disease did not get to that place, because the rats that carried the Black Death rode on trading ships, and people did not trade with people from everywhere, but only in certain places.
no one knows, rats had carried diseases for years. ex. the trip to Roanoke the rats carried the black death disease
The black death or the plague was a disease carried by infected fleas that made many people sick and many more died.... Parts of Europe had been almost completely wiped out by this disease
A lack of sanitaiton and proper sewage systems drew in rats that carried the disease