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

We report test results for SARS-CoV-2 antibodies in an occupational group of postgraduate research students and current members of staff at King’s 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.