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. 2022 Mar 8;88(5):e01740-21. doi: 10.1128/aem.01740-21

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FIG 3 — Wastewater surveillance of two Yellowknife lift stations with the GeneXpert and laboratory-developed solids assay. (A) Measured SARS-CoV-2 concentration in lift station 5 wastewater using the GeneXpert-Amicon rapid test (solid gray line) or laboratory-developed solids assay at the National Microbiology Laboratory (dotted black line). Collection frequency increased after first detection. (B) Measured SARS-CoV-2 concentration in wastewater collected at lift station 6. (C) New cases identified in Yellowknife between 26 March and 2 May. One travel-related case was identified on 6 April, and a second independent cluster was identified on 21 to 25 April.