how do rats cause plague
Answers
Answer:
pestis infects rats, the bacterium can pass to fleas that drink the rodents' blood. When a plague-stricken rat dies, its parasites abandon the corpse and may go on to bite humans.
When spring arrived, the Italian merchants fled on their ships, unknowingly carrying the Black Death. Carried by the fleas on rats, the plague initially spread to humans near the Black Sea and then outwards to the rest of Europe as a result of people fleeing from one area to another. Bubonic plague is an infection of the lymphatic system, usually resulting from the bite of an infected flea, Xenopsylla cheopis (the rat flea). ... The flea is parasitic on house and field rats, and seeks out other prey when its rodent hosts die.The plague was the cause of the Black Death that swept through Asia, Europe, and Africa in the 14th century and killed an estimated 50 million people. This was about 25% to 60% of the European population.
Explanation:
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Answer:
pestis infects rats, the bacterium can pass to fleas that drink the rodents' blood. When a plague-stricken rat dies, its parasites abandon the corpse and may go on to bite humans.
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