mutation

The Centers For Disease Control and Prevention (CDC) recently updated its guidance both for people exposed to and people infected with SARS-CoV-2, the virus in charge of the ongoing pandemic of Coronavirus Disease 2019.

For much of 2020, how and when exactly the virus was still contagious was largely unknown, as scientists were dealing with the fallout of a virus that transmits pre-symptomatically through the air. Quarantine and isolation periods were 14 days for that year, and then with updated guidance in the winter of 2021, the quarantine/isolation period was changed to 10 days.