Pfizer, BioNTech not sure on vaccines' effectiveness on new COVID variant 'Omicron'
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The companies also promised to develop a new vaccine against the variant in about 100 days, Sputnik reported.
Full ArticlePublished
The companies also promised to develop a new vaccine against the variant in about 100 days, Sputnik reported.
Full ArticleWatch VideoEconomic powerhouses Japan and France reported their first cases of the omicron variant Tuesday, while new findings..
Watch VideoPresident Joe Biden called the new coronavirus variant omicron a cause for concern but "not a cause for panic" Monday..