About The Study: This study of 2.4 million adults in Singapore investigated levels of protection against severe COVID-19 and confirmed SARS-CoV-2 infection across several vaccine types, vaccine combinations and time since last dose.
Authors: Oon Tek Ng, M.R.C.P., of the National Centre for Infectious Diseases in Singapore, is the corresponding author.
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(doi:10.1001/jamanetworkopen.2022.28900)
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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Journal
JAMA Network Open