[theold]

Interval of 4-6 months since completion of the primary series of the vaccine could be considered for a first booster, says the WHO

The WHO cited seven studies, conducted during a time when Omicron was the predominant circulating strain globally, that evaluated the relative effectiveness of a fourth dose four months after a third dose of mRNA vaccine compared to those who received three doses.


https://www.thehindu.com/sci-tech/health...425721.ece