Moderna’s Omicron-adapted COVID-19 vaccines appear to reduce the risk of hospitalization and death in adults who are not ...

The first known meta-analysis of how SARS-CoV-2 variant type and time since infection influence long-COVID symptoms ties Omicron to brain fog and paresthesia (numbness and tingling), while earlier ...

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.

With the latest COVID-19 variant leading to record numbers of cases worldwide, a top infectious disease expert says the virus is undergoing a major shift. Dr. Robert Redfield, the former director of ...

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 ...

LOS ANGELES COUNTY (CNS) -- Los Angeles County confirmed two more cases of the omicron variant of COVID-19 on Friday, including one that was locally acquired, while health officials again stressed ...

An omicron subvariant is once again demonstrating immune-dodging abilities, posing a threat to both vaccinated and previously infected individuals. A report published Wednesday in the New England ...

The timing of symptom onset depends on lots of factors, including the amount of virus to which someone was exposed, Hotez says. Their level of pre-existing immunity may also affect the likelihood or ...

The omicron variant of COVID-19, which had been undetected in the U.S. before the middle of this week, had been discovered in at least five states by the end of Thursday, showing yet again how ...

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HOUSTON, Texas (KTRK) -- As the omicron variant makes its way through southeast Texas, we're learning more about how it's impacting people, including how quickly booster effectiveness is fading. Dr.

"As these viruses continue to evolve, public health officials watch carefully to see whether new strains will be more easily ...