PETALING JAYA: As the virus evolves, steps needed to keep people safe must too, including adjusting the interval of booster shots, experts say. Many countries have shortened the interval of Covid-19 booster shots to three months, including Malaysia, in the fight to contain new coronavirus variants, especially Omicron. Virologist Dr Kumitaa Theva Das said global data suggests that two doses of vaccine, whether it is from Pfizer, AstraZeneca or Sinovac, offer reduced protection against Omicron, ad
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2021-12-30 00:00:00.0
