Health experts are worried that existing COVID-19 vaccines could be less effective against the highly mutated Omicron variant, and warned there could be a scramble among countries next year to get access to updated vaccines.
Health experts are worried that existing COVID-19 vaccines could be less effective against the highly mutated Omicron variant, and warned there could be a scramble among countries next year to get access to updated vaccines.
Health experts are worried that existing COVID-19 vaccines could be less effective against the highly mutated Omicron variant, and warned there could be a scramble among countries next year to get access to updated vaccines.