Fox Health

Here's what we know about the omicron variant of COVID-19 in the U.S. after its first case was announced Wednesday.

After two dozen countries have reported cases of the omicron variant, the European Union (EU) countries might be headed towards mandatory vaccination to fight the spread of COVID-19

Patients who had severe COVID-19 may be twice at risk of dying over the following year, compared to patients who had a mild or moderate case, or individuals not infected by novel coronavirus, according to a new study.

A traveler who returned to California from South Africa has become the first person in the United States identified to have the omicron variant of COVID-19, officials confirmed Wednesday.

More American adults are living alone, according to newly released estimates from the U.S. Census Bureau's annual America's Families and Living Arrangement table package.

Dr. Anthony Fauci, the top U.S. infectious disease expert, said Tuesday the COVID-19 pandemic has diverted scientific and financial resources from the fight against AIDS, seriously impeding global efforts to achieve the U.N. goal of ending AIDS by 2030.

In guidance released on international travel in relation to the COVID-19 omicron variant, the World Health Organization (WHO) wrote Tuesday that people ages 60 and older should delay travel to "areas with community transmission."

A panel of U.S. health advisers on Tuesday narrowly backed a closely watched COVID-19 pill from Merck, setting the stage for a likely authorization of the first drug that Americans could take at home to treat the coronavirus.

Cytalux (pafolacianince), a drug that binds to ovarian cancer tissue and glows when exposed to fluorescent light, has been approved by the U.S. Food and Drug Administration (FDA) to help surgeons detect ovarian tumors during surgical procedures in patients.

Government health advisers on Tuesday weighed the benefits and risks of a closely watched drug from Merck that could soon become the first U.S.-authorized pill for patients to take at home to treat COVID-19.

The University of Oxford said Tuesday there was no evidence that current COVID-19 vaccines would not continue to protect against severe disease from the omicron variant.

The Centers for Disease Control and Prevention (CDC) on Monday updated agency guidance to advise that anyone over age 18 should receive a COVID-19 booster shot.

With New York City health officials anticipating the omicron variant to arrive in the coming days, the city’s top doctor on Monday recommended that New Yorkers wear COVID-19 masks "at all times" indoors and in public settings regardless of their vaccination status.

The World Health Organization says it could still take some time to get a full picture of the threat posed by omicron, a new variant of the coronavirus as scientists worldwide scramble to assess its multiple mutations.

The COVID-19 omicron variant has an “unprecedented number of spike mutations” and poses a “very high” global risk, the World Health Organization said Monday.

A married couple who tested positive for COVID-19 left their hotel quarantine and were arrested in an “airplane that was about to” leave the country, Dutch military police said, according to a report.

Children face a deluge of electronic information from traditional television and computers to tablets, smartphones and video games, but prior studies examining the impact of electronic media on children and adults have yield mixed results.

A new study published in Medicine & Science in Sports & Exercise addressed the age-old question: does exercise make us eat more afterwards or decrease our appetite for the next meal?

South Africa's Dr. Angelique Coetzee who first alerted authorities to the presence of the COVID-19 omicron variant reported that it presents "unusual but mild" symptoms.

The U.S. Centers for Disease Control and Prevention (CDC) said Friday night that no cases of the omicron COVID-19 variant have been identified in the U.S. to date.