Vaccine Makers Pursue Omicron-Targeted Shots That Health Officials Say Might Not Be Needed - The Wall Street Journal

As Covid-19 vaccine makers prepare Omicron-specific shots, federal health authorities say there are signs they might not be necessary.

Research is continuing, however, and industry and global-health officials say doses targeting the highly transmissible new variant might be needed longer-term, especially if it winds up crowding out earlier strains globally.

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