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The ___ that caused the plague is called

Yersinia

pestis

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Scientists study the behavior of different ___ of

bacteria.

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The ___ that carry disease live on animals like

squirrels and mice.

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Groundhogs and squirrels are the examples of ___.

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Musophobia is the fear of ___.

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Hygiene 

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Render

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Notorious 

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Phobia

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Irrational