STUDIES SHOW EFFICACY OF PFIZER VACCINE AS BOOSTER DOSE PUTRAJAYA, Nov 12 — The findings from studies conducted abroad including Thailand, Chile and Turkey showed good efficacy of the Comirnaty vaccine developed by Pfizer-BioNTech as a booster dose. Institute for Clinical Research director Dr Kalaiarasu M. Peariasamy said the Comirnaty vaccine is currently used as...