Figure 1: (a) Positive SARS-CoV-2 tests for asymptomatic and
symptomatic screening arms by week.(b) Total HCW SARS-CoV-2 tests in CUHNFT performed by week.(c) Total positive SARS-CoV-2 patient tests in Cambridge
University Hospital NHS Foundation Trust (CUHNFT) by week. (d)Total positive SARS-CoV-2 tests in the East of England (EOE) by week.