The company says this version targets both the original coronavirus and the beta variant, and appears to provide broader and longer-lasting protection against different strains, including omicron.
A health care worker prepares the current COVID vaccine booster shots from Moderna in February. The company says a bivalent vaccine that combines the original strain with the omicron strain is the lead candidate for a fall vaccination campaign. that a new version of the company's COVID-19 vaccine appears to provide stronger, longer-lasting protection against variants of the virus than the original vaccine.
"We believe that these results validate our bivalent strategy," said Stéphane Bancel, Moderna's chief executive officer, in a news release. Bancel added that another bivalent vaccine that combines the original strain with the omicron strain"remains our lead candidate" for a fall vaccination campaign aimed at protecting people against a winter surge. Results from the testing of that version are expect later this spring, according to Moderna.
"We believe that a bivalent booster vaccine, if authorized, would create a new tool as we continue to respond to emerging variants," Bancel said. The study has not yet been reviewed by independent scientists and produced mixed reactions from outside experts.
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