Assessing Outcomes of Flexible Boosting of CoronaVac COVID-19 Vaccine

JAMA Network Open


Media advisory: The full study is linked to this news release.

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About JAMA Network Open: JAMA Network Open is the new online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.


About The Study: In this study using national data of nearly 14 million vaccinated individuals in Malaysia, researchers assessed the risk of symptomatic SARS-CoV-2 infection associated with two doses of the CoronaVac (Sinovac Biotech) COVID-19 vaccine plus a third dose or a Pfizer-BioNTech booster compared with two or three doses of the Pfizer-BioNTech vaccine.

Authors: Ee Vien Low, Ph.D., of the Ministry of Health Malaysia in Shah Alam, Malaysia, is the corresponding author.



Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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