Retesting Coronavirus Infected People Every 90-Days is Not Necessary

On August 14, 2020, the U.S. CDC issued a clarification regarding coronavirus immunity. On August 3rd, the CDC updated its isolation guidance based on the latest science about COVID-19 disease showing that people can continue to test positive for up to 3 months after diagnosis and not be infectious to others.

Contrary to media reporting, this science does not imply a person is immune to reinfection with SARS-CoV-2, the betacoronavirus that causes COVID-19, in the 3-months following infection.

The latest CDC data simply suggests that retesting someone in the 3-months following initial infection is not necessary unless that person is exhibiting the symptoms of COVID-19 and the symptoms cannot be associated with another illness.