PETALING JAYA: With the number of severe Covid-19 cases among vaccinated people increasing, Health Minister Khairy Jamaluddin has called on all to take booster shots when able to.
He said the effectiveness of vaccines will start to wane after a few months, with the Sinovac vaccine being the quickest to lose its effectiveness.
“While Sinovac is effective, there is evidence its effectiveness wanes sooner.
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