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U.S. study suggests vaccines may be ineffective against Omicron without booster

Vials labelled “Moderna, Johnson & Johnson, Pfizer-BioNTech coronavirus disease (COVID-19) vaccine” are seen in this illustration picture taken May 2, 2021. REUTERS/Dado Ruvic Register now for FREE unlimited access to Reuters.com Register NEW YORK, Dec 14 (Reuters) – All three U.S.-authorized COVID-19 vaccines appear to be significantly less protective against the newly-detected Omicron variant of […]