HISTORY
MEDIEVAL CHRISTIAN EUROPE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fleas on dogs
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Cockroaches
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Fleas on rats
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Mosquitoes
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Detailed explanation-1: -Yersinia pestis is the causative agent of plague, an enzootic vectorborne disease usually infecting rodents (rats) and fleas. Humans can become infected after being bitten by fleas that have fed on infected rodents.
Detailed explanation-2: -Bubonic plague is an infection spread mostly to humans by infected fleas that travel on rodents. Called the Black Death, it killed millions of Europeans during the Middle Ages.
Detailed explanation-3: -Plague is a disease that affects humans and other mammals. It is caused by the bacterium, Yersinia pestis. Humans usually get plague after being bitten by a rodent flea that is carrying the plague bacterium or by handling an animal infected with plague.
Detailed explanation-4: -[The black rat (Rattus rattus) and the plague in ancient and medieval western Europe] Bull Soc Pathol Exot.
Detailed explanation-5: -Fleas become infected by feeding on rodents, such as chipmunks, prairie dogs, ground squirrels, mice, and other mammals that are infected with the bacterium Yersinia pestis. Fleas transmit the plague bacteria to humans and other mammals during a subsequent feeding.