A member asked:

Before sars, mers, and now covid-19, were coronaviruses a problem in human history? why can't we fight these off very well?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Coronaviruses: There are 7 Coronaviruses that cause problems for humans. REF: https://www.cdc.gov/coronavirus/types.html. SARS, MERS and COVID 19 were all novel when they causes outbreaks. Our bodies are more used to the other 4 coronaviruses that cause more common respiratory infections.

Answered 6/22/2020

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