This article is 3 years old
WHO body says Covid-19 vaccines may need to be updated for Omicron
A World Health Organization technical body said on Tuesday that current Covid-19 vaccines may need to be reworked to ensure they are effective against Omicron and future variants of the coronavirus.
The technical group, made up of independent experts, said it would consider a change in vaccination composition and stressed that shots needed to be more effective in protecting against infection...
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