Date	Event	Description
1 September 2022	New search has been performed	Review updated to include studies available up to 30 September 2020. This is the first update of the review.
1 September 2022	New citation required and conclusions have changed	This iteration of the review restricts study inclusion to evaluations of commercially produced tests and to those reporting sensitivities according to time after onset of infection, primarily defined as time from symptom onset. The number of test brands with available data has increased as has the amount of data by week after symptom onset (up to day 35). We have also been able to analyse data for those in the convalescent phase of infection (defined as 21 days or more after symptom onset, or 14 days or more after a positive PCR test) and for those reported as asymptomatic at the time of testing.