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Volume 28, Number 9—September 2022
Research

Tracking Emergence and Spread of SARS-CoV-2 Omicron Variant in Large and Small Communities by Wastewater Monitoring in Alberta, Canada

Casey R.J. HubertComments to Author , Nicole Acosta, Barbara J.M. Waddell, Maria E. Hasing, Yuanyuan Qiu, Meghan Fuzzen, Nathanael B.J. Harper, María A. Bautista, Tiejun Gao, Chloe Papparis, Jenn Van Doorn, Kristine Du, Kevin Xiang, Leslie Chan, Laura Vivas, Puja Pradhan, Janine McCalder, Kashtin Low, Whitney E. England, Darina Kuzma, John Conly, M. Cathryn Ryan, Gopal Achari, Jia Hu, Jason L. Cabaj, Chris Sikora, Larry Svenson, Nathan Zelyas, Mark Servos, Jon Meddings, Steve E. Hrudey, Kevin Frankowski, Michael D. Parkins, Xiaoli (Lilly) Pang, and Bonita E. Lee
Author affiliations: University of Calgary, Calgary, Alberta, Canada (C.R.J. Hubert, N. Acosta, B.J.M. Waddell, M.A. Bautista, C. Papparis, J. Van Doorn, K. Du, K. Xiang, L. Chan, L. Vivas, P. Pradhan, J. McCalder, K. Low, W.E. England, D. Kuzma, J. Conly, M.C. Ryan, G. Achari, J. Hu, J.L. Cabaj, J. Meddings, K. Frankowski, M.D. Parkins); University of Alberta, Edmonton, Alberta, Canada (M.E. Hasing, Y. Qiu, T. Gao, C. Sikora, N. Zelyas, S.E. Hrudey, X.[L.] Pang, B.E. Lee); Alberta Health Services, Edmonton (Y. Qiu, C. Sikora, N. Zelyas, X.[L.] Pang); Alberta Health Services, Calgary (J. Conly, J.L. Cabaj, M.D. Parkins); University of Waterloo, Waterloo, Ontario, Canada (M. Fuzzen, N.B.J. Harper, M. Servos); Alberta Health, Government of Alberta, Edmonton (L. Svenson)

Main Article

Figure 2

Number of days required for the SARS-CoV-2 Omicron-to-Delta variant ratio to pass thresholds of 10% (A), 50% (B), and 90% (C) of community COVID-19 burden, Alberta, Canada, November 2021–January 2022. General trends of Omicron emergence are shown as a function of decreasing population size and distance from the nearest airport in Calgary, Edmonton, or Fort McMurray. Bubble plots only include data from Calgary-1 and Edmonton-1 wastewater treatment plants (the largest plant from each city), scaled to the population of the corresponding sewershed subcatchment in those cities. AIR, Airdrie; BAN, Banff; BRO, Brooks; CAL, Calgary; CAM, Canmore; COL, Cold Lake; DRU, Drumheller; EDM, Edmonton; FMM, Fort McMurray; GRP, Grande Prairie; HIR, High River; LAC, Lacombe; LET, Lethbridge; MEH, Medicine Hat; OKO, Okotoks; RED, Red Deer; STR, Strathmore; TAB, Taber; WWTP, wastewater treatment plant.

Figure 2. Number of days required for the SARS-CoV-2 Omicron-to-Delta variant ratio to pass thresholds of 10% (A), 50% (B), and 90% (C) of community COVID-19 burden, Alberta, Canada, November 2021–January 2022. General trends of Omicron emergence are shown as a function of decreasing population size and distance from the nearest airport in Calgary, Edmonton, or Fort McMurray. Bubble plots only include data from Calgary-1 and Edmonton-1 wastewater treatment plants (the largest plant from each city), scaled to the population of the corresponding sewershed subcatchment in those cities. AIR, Airdrie; BAN, Banff; BRO, Brooks; CAL, Calgary; CAM, Canmore; COL, Cold Lake; DRU, Drumheller; EDM, Edmonton; FMM, Fort McMurray; GRP, Grande Prairie; HIR, High River; LAC, Lacombe; LET, Lethbridge; MEH, Medicine Hat; OKO, Okotoks; RED, Red Deer; STR, Strathmore; TAB, Taber; WWTP, wastewater treatment plant.

Main Article

Page created: July 09, 2022
Page updated: August 19, 2022
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