Updated CDC guidelines say people exposed to Covid-19 may not need to be tested

The US Centers for Disease Control and Prevention has changed its Covid-19 testing guidelines. The agency no longer recommends testing for most people without symptoms, even if they’ve been in close contact with someone known to have the virus.The US Centers for Disease Control and Prevention has changed its Covid-19 testing guidelines. The agency no longer recommends testing for most people without symptoms, even if they’ve been in close contact with someone known to have the virus.