They did die. After they were infected by the fleas that were the original carriers, they got sick. They transmitted the virus inadvertantly through the food they nibbled off of in humans' pantries. Humans would eat this food and get infected with the black plague. Towards the end of their lives, as the virus progressed, the rats would go a tad loopy and bite humans, therefore directly transferring the virus to humans. The rats then died. Other creatures would feast on the rat's corpse and be infected. The cycle continued.
No medical knowledge existed in Medieval Europe to cope with the disease. In fact, Europeans didn't know that rats were behind the black plague. Trading ships accidentally brought the black rat from India and Central Asia to Egypt, the black rats caught these germs and, not being adapted to them, died of the plague. Then the fleas jumped on humans. Lots of rats died but they reproduced so quickly that the plague didn't effect the rat population as drastically as the human population.
Evidence suggests that lack of heaping rat carcasses from the middle ages implies they may have been carriers without actually getting sick.
The Black Death was spread by fleas which lived on black rats.
the black death was carried by fleas that were on rats and the rats were on boats and they were carried over
It was carried by the fleas that lived on the rats.
yes, it certainly did. In Mongol army camps rats died and spread Black Death.
rats got infected by Yersinia pestis bacterium. When they die fleas spread bacteria to humans.
rats
The rats
Black death was caught by rats that came on the ships of vikings. The disease actually comes from the ticks on the rats.
Fleas on the backs of rats carried the black death.
The Black death was killing people by ships having rats and fleas. Then the fleas carry the plague and then the fleas go on the people and then they will get sick and die.
The Black Death was spread by fleas and rats. ik..gross
No one did it was rats that carried black death (plague)