NEW YORK -- This holiday season held promise for Americans, many of whom spent Christmas 2020 in quarantine or away from loved ones due to a nasty winter COVID-19 surge. Yet in the last week or so, ...

Pfizer's and Moderna's omicron boosters reduced the risk of mild illness from the XBB family of subvariants compared to people who did not receive the shot, according to a study from the Centers for ...

The BA.2.75 sublineage of the B.1.1.529 (omicron) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may escape neutralizing antibodies. The BA.2.75 sublineage (primarily the BA.2 ...

mRNA COVID-19 vaccines are less effective against Omicron infections than other variants. A study suggests that the additional protection offered by the initial booster shot may be reduced among ...

Scientists have developed a novel Omicron-specific mRNA vaccine that offers superior immune protection against two viral subvariants than standard mRNA vaccines. The new vaccine, called Omnivax, ...

SYRACUSE, N.Y. (WSTM) — With omicron cases of COVID-19 displaying more mild symptoms than previous strains of the coronavirus, experts say it's easy for people to think they have a common cold. The ...

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July 1 (Reuters) - Coronavirus vaccines tweaked to include the Omicron variant strain can improve protection when used as a booster, the European Medicines Agency and other global health regulators ...

NEW YORK CITY (WABC) -- As the dramatic, omicron-fueled spread of COVID-19 continues across the Tri-State region, New York City residents have several new testing options Thursday. New York reported ...