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Understanding Coronaviruses

Coronaviruses are common viruses that infect many species of mammals, including people. Typically, the viruses cause mild to moderate illnesses in the upper respiratory tract. Severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) coronaviruses, however, can cause more severe illness and death.

Last Updated October 28, 2013

Last Reviewed October 28, 2013