The P-ATS was primarily targeted to students in their first year of study who were living in university accommodation on campus. All first-year students who had arrived in 2020 Cohort 1 were therefore eligible for the P-ATS and were offered the full programme which included a total of 12 PCR tests to be completed weekly over 12 weeks (10 swab tests, and 2 saliva tests) and up to 6 antibody tests from July to October 2020. In addition, a number of students in their final year were invited to join the P-ATS in September 2020. Eligible final-year students were those who were due to start certain 2-week rotation placements that required them to undertake PCR testing prior to attendance. A select number of final year participants therefore participated in the P-ATS between September and October 2020.