JAMA Internal Medicine
EMBARGOED FOR RELEASE: 11 A.M. (ET), MONDAY, OCTOBER 11, 2021
Media advisory: The full study is linked to this news release.
Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/10.1001/jamainternmed.2021.5814?guestAccessKey=df2d5268-140d-48ff-831e-98d7896c2f93&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=101121
What The Study Did: In this study using national registry data from Sweden, family members without COVID-19 immunity had a lower risk of contracting COVID-19 as the number of family members with known immunity, either from a previous COVID-19 infection or full vaccination, increased.
Authors: Peter Nordström, M.D., Ph.D., of Umeå University in Umeå, Sweden, 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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