Repeated Covid boosters not a viable strategy: WHO

by Nina LARSON GENEVA, Switzerland (AFP) — WHO experts warned Tuesday 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. An expert group created by the World Health Organization to assess the performance of Covid-19 vaccines said simply providing fresh jabs of existing Covid vaccines as new strains of the virus emerge was not the best way […]