Immunogenicity and safety in healthy adults of full dose versus half doses of #COVID19 #vaccine (#ChAdOx1-S or #BNT162b2) or full-dose #CoronaVac administered as a #booster dose after priming with CoronaVac: a randomised, observer-masked, controlled trial in #Indonesia https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(22)00800-3/fulltext?rss=yes