The newly updated CDC guidelines don't require testing at the end of isolation because PCR tests can stay positive for up to 12 weeks, CDC Director Dr. Rochelle Walensky told "Good Morning America" on ...

Medically reviewed by Jordana Haber Hazan, MD Key Takeaways PCR tests are very accurate and can find the virus even in people without symptoms.Rapid tests can be done at home and show results in ...

Cepheid today announced that it has been selected by the U.S. Centers for Disease Control and Prevention (CDC) as one of four ...

A new diagnostic tool developed by researchers can test for SARS-CoV-2 and Zika virus with the same or better accuracy as high-precision PCR tests in a matter of hours. Over the past four years, many ...

It's been nearly four years since people started getting sick with COVID-19, but with new variants mutating each season, the health steps experts asked us to take at the beginning of the pandemic ...