Fig 1.
Map of UNCW campus displaying sample sites, sewer system and flow separation.
The five targeted sites shown are the physical sample site locations. The northern residential side is lined in red, while the southern “academic” side of campus is lined blue.
Fig 2.
A timeline of SARS CoV-2 infection clusters and events on UNCW’s campus during the fall semester 2020.
Dates in red are campus related events.
Fig 3.
Ct values separated by site and primer set during fall semester 2020.
The blue dots represent signal from the N1 primer set, and the orange dots represent signal from N2. The red asterisks * indicate an individual cluster outbreak and are shown on the graph for the location they occurred in, they do not reflect Ct values. Note, infected residential students were moved to the quarantine dorm. Exact cluster dates can be found in Fig 2.
Fig 4.
N1 and N2 primer Ct averages by site during fall 2020 semester.
Ct values only displayed if there was more than one positive value. Legend displays the 5 sites and the red asterisks * shown at the bottom of the figure are the individual cluster outbreaks and do not reflect Ct.
Fig 5.
A comparison of direct extract and filtration methodologies with samples taken from the quarantine dorm.
A shows Ct values with the N1 primer set and B shows Ct values with N2 primer set. Both figures use black dots for filter samples and open circles for direct extract samples.
Fig 6.
Graphical representation of SARS CoV-2 cases on UNCW’s campus during the fall semester 2020 with 7- day rolling average.
Fig 7.
Quarantine dorm beds in use during fall semester 2020.