boosters

A health worker administers a dose of Pfizer covid-19 vaccine to a man at the Sanford Civic Center. With the emergence of the Omicron covid-19 variant in numerous countries, including the United States, the US Centers for Disease Control…

The Food and Drug Administration said two studies this week showing that the new omicron boosters weren't that much better than the old shots were too small to come to any real conclusions.Scientists at Columbia and Harvard, in two…

The new COVID-19 booster which includes protection for Omicron at AltaMed Health Services in South Gate on Thursday, October 6, 2022.Sarah Reingewirtz | MediaNews Group | Los Angeles Daily News via Getty ImagesTwo studies are raising doubts…

With most Americans delaying or skipping new COVID-19 booster shots, analysts and investors are now predicting far fewer will be given each year, pushing the number of shots well below annual flu vaccinations. With fewer shots needed,…

Bivalent booster shots can help the human immune system recognize new COVID-19 variants, two new studies suggest, but it may not offer protection against all future strains. “When you see another variant, your immune system should be…

U.S. health regulators authorized the use of Omicron-tailored COVID-19 booster shots from Moderna and Pfizer in children as young as five, a move that will expand the U.S. government's fall vaccination campaign.The U.S. Food and Drug…

The U.S. on Wednesday authorized updated COVID-19 boosters for children as young as 5, seeking to expand protection ahead of an expected winter wave. Tweaked boosters rolled out for Americans 12 and older last month, doses modified to…

The U.S. is tracking several coronavirus omicron subvariants that more easily evade immunity, but the new booster shots should protect against them, a top health official said on Tuesday.Health officials are closely watching the subvariants…

One year after mass vaccination against COVID-19 was launched, inactivated virus vaccines accounted for half of the doses administered worldwide. Now, a large observational study performed in Brazil and co-led by Fiocruz and the Barcelona…

A nationwide U.S. study of more than 893,000 adults provides solid evidence confirming that mRNA booster immunizations extend protection against moderate and severe COVID for four to five months. These findings, published in The BMJ,…