Table.
Test results for on-campus students (n=6273)
| Teststotal | Testspositive(% of Teststotal) | Ntested | Npositive(% of Ntested) | |||
|---|---|---|---|---|---|---|
| Online instruction (Aug 19 to Sept 20) | 12 040 | 349 (2·9%) | 6254 | 326 (5·2%) | ||
| Pre-arrival and arrival testing (Sept 1–20)* | 11 028 | 190 (1·7%) | 5963 | 179 (3·0%) | ||
| Voluntary testing post arrival (Sept 12–20)† | 605 | 19 (3·1%) | 574 | 19 (3·3%) | ||
| In-person instruction (Sept 21 to Nov 25) | 33 510 | 1277 (3·8%) | 5870 | 1234 (21·0%) | ||
| Surveillance testing‡ | 29 658 | 788 (2·7%) | 5552 | 770 (13·9%) | ||
| Voluntary testing† | 3852 | 489 (12·7%) | 2554 | 480 (18·8%) | ||
| SBIT (Sept 23 to Oct 5) | 6353 | 664 (10·5%) | 4741 | 645 (13·6%) | ||
| Surveillance testing | 5379 | 387 (7·2%) | 4296 | 379 (8·8%) | ||
| Random testing | 3420 | 179 (5·2%) | 2911 | 176 (6·0%) | ||
| Targeted testing | 1959 | 208 (10·6%) | 1872 | 203 (10·8%) | ||
| Voluntary testing† | 974 | 277 (28·4%) | 867 | 273 (31·5%) | ||
| Weekly testing (Oct 6 to Nov 22) | 25 937 | 567 (2·2%) | 5183 | 551 (10·6%) | ||
| Surveillance testing | 24 278 | 401 (1·7%) | 4958 | 391 (7·9%) | ||
| Voluntary testing† | 1659 | 166 (10·0%) | 1094 | 165 (15·1%) | ||
Data are n or n (%), and all dates are for 2020. We define Teststotal as the number of COVID-19 tests and Testspositive as the number of COVID-19 positive tests. NTested is the number of unique individuals tested for COVID-19 and NPositive is the number of unique individuals with a positive test result. Because of the potential of multiple testing categories per student, the total number of students tested and those testing positive will not necessarily add up to the N within each period. SBIT=surveillance-based informative testing.
Test completed within 10 days before arrival or within 2 days after arrival.
Voluntary tests are defined as tests not mandated by the university surveillance strategy and include testing of symptomatic students, students directed to testing by contact tracers, or students tested for other reasons.
Random surveillance testing done between Sept 23 and Nov 22.