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The King's College London Coronavirus Health and Experiences of Colleagues at King's Study: SARS-CoV-2 antibody response in an occupational sample

By Daniel J Leightley, Valentina Vitiello, Gabriella Bergin Cartwright, Alice Wickersham, Katrina A S Davis, Sharon Stevelink, Matthew H Hotopf, Reza Razavi, On behalf of the KCL CHECK research team

Posted 11 Sep 2020
medRxiv DOI: 10.1101/2020.09.10.20191841

We report test results for SARS-CoV-2 antibodies in an occupational group of postgraduate research students and current members of staff at Kings College London. Between June and July 2020, antibody testing kits were sent to n=2296 participants; n=2004 (86.3%) responded, of whom n=1882 (93.9%) returned valid test results. Of those that returned valid results, n=124 (6.6%) tested positive for SARS-CoV-2 antibodies, with initial comparisons showing variation by age group and clinical exposure.

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