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black rats were hosts for Yersinia pestis bacterium. Fleas help to spread them to humans.
black rats were hosts for Yersinia pestis bacterium. Fleas help to spread them to humans.
black death was caused by Yersinia pestis bacterium. It spread by rats and fleas.
rats got infected by Yersinia pestis bacterium. When they die fleas spread bacteria to humans.
black death was spread by Yersinia pestis bacterium. Rats and fleas help to spread it even more.
black death was spread by Yersinia pestis bacterium. It causes bloody vomit fever and tumors.
Black death was spread by flea bites. Flea bites transferred Yersinia pestis bacterium.
Black Death was spread by Yersinia pestis bacterium. Symptoms bloody vomit fever and tumors followed with death.
The infected fleas that spread the disease, The rats that carried the fleas, The ships that carried the rats from port to port. The Bacteria (Yersinia pestis), that infected the fleas.
For infected individuals, you'd have to give them antibiotic therapy. If there is a plague outbreak in a community, a reasonable way to stop the spread would be to quarantine infected individuals and kill off the local rodent and flea populations.
Throughout history there have been several plagues, and these are usually generated by a bacteria, and commonly spread by rats and unhygienic conditions prevailing. Yersinia pestis is believed to be one of the diseases of historic plagues.
rats carried flea's. the flea's carried the plague the people got the plague from the flea's but blamed the rats.