History of Epidemics and COVID-19

In archaeological excavations, it has been reported that formations resembling bacterial fossils are found among the rock layers and they belong to millions of years ago. There are those who have created the flora and preserved us by creating our flora, and those that have brought us to the end, as well as those that help us to form the microorganisms that we share with the same planet, whose existence dates back to ancient times. Although our immune system and medical facilities are trump cards against microorganisms living in the world for much longer than human beings, these are not always enough to protect us, and microorganisms are causing outbreaks that will make history. In this review, we aimed to examine the epidemic diseases experienced by human beings from past to present and their effects.