The Black Death (bacteria) is a well-known case in point.
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This plague killed millions & then subsided.
-寒苇-
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06/09/2023 postreply
06:57:13
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蒙古大帝国也受此疫影响而变弱回亚。
-AP33912-
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06/09/2023 postreply
07:36:00