Pfizer said that tweaking its vaccine to better target the omicron variant is safe and works — just days before regulators debate whether to offer Americans updated booster shots this fall.
Some scientists estimate that cases of long COVID from omicron will still rise, however, because of high transmissibility and the misconception that people don't have to worry about catching it.
People who catch COVID may feel as if they won't get it again, at least not for a long time. Their immune system should be primed to fight it off in the future. Right? Well, let's see.
New versions of omicron are circulating in the United States and South Africa. Two new studies shed light on the potential for future surges — and the risk factor if you've already had omicron.
Whether it's a wedding, graduation or meeting, indoor events can spread the virus. Here's a complete guide: what to ponder before going, how to cut risks while there, what to do if cases crop up.
The variants — BA.2.12 and BA.2.12.1 — have been detected in New York and other states as well as 5 other countries. One has a mutation that seems to give it an edge in evading the immune system.
The vaccines now in use are based on the form of the virus that circulated at the beginning of the pandemic and are less effective against the omicron variant. New options are in the works.
Federal health officials are convening with outside advisers April 6 to talk about a vaccine plan, whether that's another booster in the fall, an omicron shot or one that targets more than one strain.
That's how the so-called "deltacron" variant — a mashup of delta and omicron — came to be. This process of recombining tells us a lot about the possible past and future of SARS-CoV-2.
Many of the domestic workers say they were banished from their employers' homes after getting sick — and fired — even though terminating an employee for falling ill is against Hong Kong law.
The CDC says you can end isolation after five days. But emerging research shows with omicron, many people could be infectious for several days past that. So how do you determine if you're good to go?
Slammed by COVID-19, many U.S. hospitals have put off essential procedures. Delays are leading to consequences like heart attacks and sending people to emergency rooms to get care.
Omicron is still spreading and it's crazy contagious. Experts share seven steps to deal with an infection, protect your household from getting sick and stay sane in the process.
People who get infected with omicron are less likely to go to the hospital, go on a ventilator or die. But with the current huge volume of patients, hospitals are still struggling to treat them all.
