
Pfizer Says Tweaked COVID-19 Shots Boost Omicron Protection
Pfizer says tweaking its COVID-19 vaccine to better target the omicron variant is safe and boosts protection.
Pfizer says tweaking its COVID-19 vaccine to better target the omicron variant is safe and boosts protection.
U.S. health officials have opened COVID-19 vaccines for infants, toddlers and preschoolers — the last group without the shots.
New daily Covid cases used to be an easy way to track the pandemic’s severity. Today, you might want to pay attention to a different set of numbers.
U.S. regulators on Friday authorized the first COVID-19 shots for infants and preschoolers, paving the way for vaccinations to begin next week.
Biden has often been tested more frequently, either because of close calls with people who have subsequently tested positive for COVID-19 or because of his travel schedule.
In 2020, COVID-19 reinfections were considered rare. In 2021, breakthrough infections in vaccinated individuals could occur, but again, the risk was low.
COVID-19 shots for U.S. infants, toddlers and preschoolers moved a step closer Wednesday.
A newly developed blood test that measures a specific immune response in the body could help doctors gauge how much protection a person has against COVID-19, according to a new study.
A government advisory panel has endorsed a second brand of COVID-19 vaccine for school-age children and teens. The expert panel agreed Tuesday that the vaccine made by Moderna is safe and effective enough to give to U.S. kids ages 6 to 17. A vaccine made by Pfizer has been available since last year for those ages. The Food and Drug...
A review by federal health officials says that Pfizer’s COVID-19 vaccine appears safe and effective for children under 5, the only group not currently eligible for vaccination.
Parents anxious to finally vaccinate their youngest children against COVID-19, strap in: A lot is set to happen over the next week.
Novavax’s shot would be the fourth Covid vaccine authorized for use in the U.S. The shots use different technology than Pfizer and Moderna.
If you test positive for coronavirus or are exposed to someone who has, just how long should you quarantine or isolate? Here’s what the experts say.