Omicron COVID-19 Case Estimates Based on Previous SARS-CoV-2 Wastewater Load, Regional Municipality of Peel, Ontario, Canada

We determined correlations between SARS-CoV-2 load in untreated water and COVID-19 cases and patient hospitalizations before the Omicron variant (September 2020–November 2021) at 2 wastewater treatment plants in the Regional Municipality of Peel, Ontario, Canada. Using pre-Omicron correlations, we e...

Descripción completa

Detalles Bibliográficos
Autores principales: Cheng, Lydia, Dhiyebi, Hadi A., Varia, Monali, Atanas, Kyle, Srikanthan, Nivetha, Hayat, Samina, Ikert, Heather, Fuzzen, Meghan, Sing-Judge, Carly, Badlani, Yash, Zeeb, Eli, Bragg, Leslie M., Delatolla, Robert, Giesy, John P., Gilliland, Elaine, Servos, Mark R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Centers for Disease Control and Prevention 2023
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10370834/
https://www.ncbi.nlm.nih.gov/pubmed/37379513
http://dx.doi.org/10.3201/eid2908.221580
Descripción
Sumario:We determined correlations between SARS-CoV-2 load in untreated water and COVID-19 cases and patient hospitalizations before the Omicron variant (September 2020–November 2021) at 2 wastewater treatment plants in the Regional Municipality of Peel, Ontario, Canada. Using pre-Omicron correlations, we estimated incident COVID-19 cases during Omicron outbreaks (November 2021–June 2022). The strongest correlation between wastewater SARS-CoV-2 load and COVID-19 cases occurred 1 day after sampling (r = 0.911). The strongest correlation between wastewater load and COVID-19 patient hospitalizations occurred 4 days after sampling (r = 0.819). At the peak of the Omicron BA.2 outbreak in April 2022, reported COVID-19 cases were underestimated 19-fold because of changes in clinical testing. Wastewater data provided information for local decision-making and are a useful component of COVID-19 surveillance systems.

Ejemplares similares