Although not evident at first, the history of world civilization has been shaped by microorganisms. Find and discuss one example of how a single microorganism has changed our society or even our medical practices.

1.Although not evident at first, the history of world civilization has been shaped by microorganisms. Find and discuss one example of how a single microorganism has changed our society or even our medical practices. For example, the world pandemics of bubonic plague (Yersinia pestis) in the 1600’s, also known as the Black Death, changed how we viewed the infallibility of church clergy and also how we train modern physicians to treat disease.