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. 2021 Nov 4;16(11):e0258738. doi: 10.1371/journal.pone.0258738

Table 2. Fall 2020 University of California campus and surrounding population sizes, SARS-CoV-2 testing volume, COVID-19 cases and fraction of populations testing positive during the fall term.

  UCB UCD UCI UCLA UCM UCR UCSB UCSC UCSD UCSF
Fall 2020 Quarter/Semester enrollmenta 42,327 39,074 36,303 44,589 9,018 26,434 26,179 19,161 39,576 3,215
Number of students living on-campus 2,189 4,000 7,182 703 388 1,815 1,319 950 9,129 579
Percent of students Living on campus 5.2% 10.2% 19.8% 1.6% 4.3% 6.9% 5.0% 5.0% 23.1% 18.1%
Number of Staff/Faculty on-campus during Fallb 3,500 7,000 3,688 9,660 600 2,709 3,849 1,200c 3,914 19,750
Estimated number of students living locally off-campus 8,000–10,000 16,000 10,704 n.a. 3,000 1,000 8,400 5,000 15,751 2,636
Number of unique individuals tested 17,111 24,290 8,478 22,357d 2,026 2,153 3,139 5,637 25,391 11,766
Number of tests collected 96,284 86,648 54,070 103,077 5,804 15,532 16,268 26,015 94,811 22,672
Number of positive tests collected 264 202 403 694 161 63 68 97 424 413
Number of positive cases in students 235 145 313 227 109 59 53 79 307 22
Percent of county 20–29-year-olds testing positivee 2.4% 3.1% 3.7% 5.0% 5.1% 5.6% 1.9% 2.4% 3.5% 1.6%
Percent of on-campus students testing positive 2.1% 4.7% 2.0% 4.8% 5.2% 3.3% 4.6% 1.4% 1.2% 1.7%
Percent of off-campus students testing positive 2.1% n.a. 1.4% 4.1% 2.0% n.a. 4.0% 1.2% 1.2% 0.4%
Academic term Semester Quarter Quarter Quarter Semester Quarter Quarter Quarter Quarter Quarter
Start datef 8/19/20 9/28/20 9/28/20 9/28/20 8/19/20 9/28/20 9/27/20 9/26/20 9/28/20 9/28/20
End datef 12/18/20 12/18/20 12/18/20 12/18/20 12/18/20 12/18/20 12/18/20 12/18/20 12/19/20 12/18/20g

bNumber of faculty/staff on campus is estimated and excludes those on separate medical campuses except UC San Francisco

cDerived from the daily symptom screening tool

dDoes not include unique individuals tested from commercial lab

eItalicized values in the next two rows show significantly higher and underlined values show significantly lower proportion testing positive from the Poisson regression (p<0.05, 2-sided)

fAcademic calendar dates from published university registrar calendars

gEnd date is last day of final exams to maintain consistency with other campuses. n.a. = not available.