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. 2021 Sep 17;7(9):e30010. doi: 10.2196/30010

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©Ben Glampson, James Brittain, Amit Kaura, Abdulrahim Mulla, Luca Mercuri, Stephen J Brett, Paul Aylin, Tessa Sandall, Ian Goodman, Julian Redhead, Kavitha Saravanakumar, Erik K Mayer. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 17.09.2021.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Public Health and Surveillance, is properly cited. The complete bibliographic information, a link to the original publication on https://publichealth.jmir.org, as well as this copyright and license information must be included.

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Cumulative event rate of testing positive comparing Pfizer and AstraZeneca vaccination groups to the unvaccinated group available for follow-up. Numbers at risk are calculated at 10-day intervals. Vaccination type was not available for 2934 patients. Dotted lines depict 95% CIs.