A new COVID-19 omicron subvariant, known as XBB.1.5, is spreading rapidly across the United States.
Researchers at Boston University added a spike protein from the Omicron variant with the original Wuhan strain, which has an 80% kill rate
About 261 million Americans have received at least one COVID-19 shot, but only 108 million have received a booster.
Researchers found that while COVID-19 booster vaccinations create a strong antibody response against omicron initially, within three months post-boost, those levels decrease.
The number of COVID-19 cases in Florida is on the rise. According to the Florida Department of Health, one out of five people being tested in Florida is positive for COVID-19. In Polk County, it is closer to one out of four.
The U.S. Centers for Disease Control and Prevention is now recommending people in areas at a high COVID-19 community level resume indoor masking.
The city sends samples to a Massachusetts company called Biobot, which is collecting from three stations in Hillsborough County and 700 nationwide. Even though numbers in Florida are still relatively low, the data shows we are enduring a small wave in Hillsborough and nationwide.
Experts say it's not likely that the highly transmissible omicron variant — or any other variant — will lead us closer to herd immunity against COVID-19.
U.S. health regulators on Friday authorized bebtelovimab, a new antibody drug that targets the omicron variant, a key step in restocking the nation's arsenal against the latest version of COVID-19.
Experts say it's too early to know whether people infected with the omicron variant will develop long COVID. Doctors believe it's possible to have long-term effects from omicron.
Propelled in part by the wildly contagious omicron variant, the U.S. death toll from COVID-19 hit 900,000 on Friday, less than two months after eclipsing 800,000.
With the brutal omicron wave rapidly loosening its grip, new cases of COVID-19 in the U.S. are falling in 49 of 50 states, even as the nation's death toll closes in on another bleak round number: 900,000.
Spain will end a mandate to wear masks outdoors next week, reversing a late December order against an unprecedented surge of coronavirus infections fueled by a highly contagious mutation, Health Minister Carolina Darias said.
Cases of COVID-19 in Florida are about to slip back underneath the highest number we saw during the Delta variant.
The daily count of new coronavirus infections in Russia spiked above 110,000 as the highly contagious omicron variant races impacts the country.
The new coronavirus variant, which scientists call BA.2, is widely considered stealthier than the original version of omicron because particular genetic traits make it somewhat harder to detect.
Public health experts around the world are closely monitoring a sub-variant of omicron they're referring to as “stealth omicron” because it may be harder to detect with currently-available tests.
If you can find a COVID-19 test and can afford to wait for results, doctors agree PCR tests are the most accurate. At-home tests are less accurate, but can work in many cases. However, if you have symptoms but can't get a test, doctors say to assume you have the omicron variant.
Pfizer Inc. said laboratory testing showed its COVID-19 pill Paxlovid appears to be effective against the omicron variant of the coronavirus.
Not all N95 masks are approved by the CDC and the FDA for fluid resistance, but at Advanced Concept Innovations (ACI) in Polk County, they're churning out 2 million CDC and FDA-approved N95 masks a day.