KUALA LUMPUR, Feb 10 A heterologous booster (Sinovac primary vaccination, followed by a Pfizer booster) offers greater protection against infection than a homologous booster dose (three doses of Sinovac) among Sinovac recipients, according to the Institute for Clinical Research (ICR), Ministry.
Due to the spread of the Covid-19 Omicron variant, recipients of the Pfizer and AstraZeneca vaccines will now have their wait time for booster doses halved to three months.
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