The causative agents of bubonic plague, which killed 100 million people during the 14th century, were
A) bacteria.
B) viruses.
C) fleas.
D) rats.
E) fish.

Name: The causative agents of bubonic plague, which killed 100 million people during the 14th century, were A) bacteria. B) viruses. C) fleas. D) rats. E) fish.
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Question

Quizplus · Accepted Answer

The causative agent of bubonic plague is the bacterium Yersinia pestis. Fleas and rats were vectors that helped spread the disease, but the bacteria itself is the direct cause.

The Causative Agents of Bubonic Plague, Which Killed 100 Million