The CDC's site previously said: "Testing is recommended for all close contacts of persons with SARS-CoV-2 infection. "Because of the potential for asymptomatic and pre-symptomatic transmission, it is important that contacts of individuals with SARS-CoV-2 infection be quickly identified and tested." In a call with reporters, senior health department official Brett Giroir said, "The new guidelines are a CDC action. The CDC has previously emphasised that between 40-50 percent of people with Covid-19 are asymptomatic, and therefore getting tested is important to stop the spread of the virus. Those exposed to the virus need to know to protect their family members & the public.

Source: Daily Nation August 26, 2020 22:07 UTC