NEW YORK (AP) — Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the U.S. Federal health officials said Monday that omicron accounted for an estimated 73 ...

NEW YORK (WABC) -- There are rising concerns about the new omicron variant, as cases have now been confirmed in more than half the U.S. Early anecdotal reports seem to indicate those infected are ...

When the coronavirus receded across much of the globe last month and the omicron surge declined, many Americans were hopeful that was perhaps the signal that the United States was entering a new phase ...

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 ...

NEW YORK (WABC) -- With the push to get more people boosted and with COVID cases continuing to decline, there could soon be some different guidance when it comes to wearing masks across the country.

NEW YORK (WABC) -- As COVID cases continue to drop, the CDC could update its mask guidelines as early as this week. Dr. Anthony Fauci warns it's still risky, but most of the country isn't waiting.

A new study released by the Centers for Disease Control and prevention on Tuesday shows that COVID-19 vaccines have been highly effective in protecting those in the U.S. from severe infection caused ...