The mRNA-1273.815 vaccine provided significant protection against COVID-19-related hospitalizations and medically attended COVID-19 among US adults.

In the fight against COVID-19, two FDA-approved mRNA vaccines were developed by Pfizer/BioNTech (BNT162b2) and Moderna (mRNA-1273), which produce the SARS-CoV-2 spike protein to activate potent B and ...

4/5 and ancestral SARS-CoV-2 than mRNA-1273, with the highest geometric mean titer ratios observed in adults and in the subset of participants aged 65 years and older,” Moderna said. The new ...

The booster shot – called mRNA-1273.211 – offered better and longer-lasting protection compared to the original SpikeVax shot against all SARS-CoV-2 variants, including the prevailing Omicron ...

and by Jan. 13—more than a week before the first COVID case was documented in the United States—researchers at Moderna and the National Institutes of Health had finalized the sequence for mRNA-1273, ...

The UK has become the first country in the world to authorise an updated COVID-19 booster vaccine directed at the Omicron variant, giving a green light to Moderna's mRNA-1273.214 shot.