Repeated Covid boosters not viable strategy against new variants, WHO experts warn

Experts urge development of new vaccines that protect against transmission of the virus in the first place

World Health Organization experts have warned that repeating booster doses of the original Covid vaccines is not a viable strategy against emerging variants and called for new jabs that better protect against transmission.

“A vaccination strategy based on repeated booster doses of the original vaccine composition is unlikely to be appropriate or sustainable,” the WHO Technical Advisory Group on Covid-19 Vaccine Composition (TAG-Co-VAC) said in a statement published on Tuesday.

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