Still, the new version of the vaccine did not generate as many antibodies as it did against the original omicron variant, according to a press release.
John Moore, a professor of microbiology and immunology at Weill Cornell Medical College, remained doubtful that the bivalent vaccine would be a game changer against omicron and its growing family of subvariants.
He said he'd like to see additional data from Moderna that was not included in Wednesday's news release, including how the updated shot stacks up against Moderna's existing booster shot. "To go to the trouble of rolling out a new vaccine, Moderna needs to show it's a better option," Moore said. Bill Hanage, an associate professor of epidemiology at Harvard University’s T.H. Chan School of Public Health, said while the Moderna data appears"impressive," it's also unclear how long the protection from the bivalent shots will last.found that antibodies generated from a booster dose of either the Moderna or Pfizer-BioNTech vaccine wane after about four months.
Moderna said Wednesday it will submit the data to the Food and Drug Administration as it prepares to potentially distribute doses of the updated shot in the U.S. in August., the FDA’s advisory committee is scheduled to meet to discuss what strain or strains should be included in Covid booster shots for the fall. Moderna is expected to present data on its bivalent vaccine during the meeting.
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