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 ...

UNIONDALE, Nassau County (WABC) -- Hundreds lined up in their cars as Nassau County kicked off the distribution of 20,000 free at-home test kits on Thursday. County Executive Laura Curran was there to ...

NEW YORK -- What are the symptoms of omicron? Health experts still don't know if the new variant is causing milder COVID-19, but more indicators are emerging. The World Health Organization's top ...

FONTANA, Calif. (KABC) -- The city of Fontana took action to curb the omicron surge Thursday with a massive distribution of COVID-19 test kits for residents. The effort was led in a partnership ...

NEWARK, Calif. (KGO) -- The race is underway to produce and use the omicron variant's DNA to determine how well existing vaccines work against it, ahead of the first case surfacing in the U.S. The Bay ...

In a recent study published in the journal Cell, researchers investigated the infectivity, fusogenicity, and immune evasive potential of two novel Omicron subvariants – BA.2.86 and FLip. They used ...

Official COVID-19 case metrics severely undercount the true number of infections, leaving the United States with a critical blind spot as the most transmissible coronavirus variant yet takes hold. The ...

A blue gloved hand in the lab holding tubes of blood identified with the label COVID-19 New Variant. The COVID-19 pandemic was the third leading cause of death globally in 2020 and the second in 2021, ...