Malaysia is monitoring closely the mix-and-match vaccines approach, with AstraZeneca as the first dose followed by Pfizer–BioNTech for the second dose. Covid-19 National Immunisation Programme (NIP) coordinating minister Khairy Jamaluddin said this followed reports that many countries are doing it to boost vaccine efficacy. Khairy, who is also the science, technology and innovation minister, said … Continue reading Govt studying mix-and-match vaccines approach to boost efficacy