Early identification of a COVID-19 outbreak detected by wastewater surveillance at a large homeless shelter in Toronto, Ontario

Simple item page

Simple item page

Full item details

creativework.keywords - en

COVID-19

Wastewater

Vulnerable populations

Public health

dc.contributor.author

Akingbola, Samantha

Fernandes, Reisha

Borden, Susan

Gilbride, Kimberley

Oswald, Claire

Straus, Sharon

Tehrani, Amir

Stuart, Rebecca

dc.date.accessioned

2024-01-04T19:30:54Z

dc.date.available

2024-01-04T19:30:54Z

dc.date.issued

2022-09

dc.description.abstract - en

SETTING: Toronto (Ontario, Canada) is a large urban centre with a significant population of underhoused residents and several dozen shelters for this population with known medical and social vulnerabilities. A sizeable men’s homeless shelter piloted a facility-level SARS-CoV-2 wastewater surveillance program. INTERVENTION: Wastewater surveillance was initiated at the shelter in January 2021. One-hour composite wastewater samples were collected twice weekly from a terminal sanitary clean-out pipe. The genetic material of the SARS-CoV-2 virus was extracted from the solid phase of each sample and analyzed using real-time qPCR to estimate the viral level. Wastewater results were reported to facility managers and Toronto Public Health within 4 days. OUTCOMES: There were 169 clients on-site at the time of the investigation. Wastewater surveillance alerted to the presence of COVID-19 activity at the site, prior to clinical detection. This notification acted as an early warning signal, which allowed for timely symptom screening and case finding for shelter managers and the local health unit, in preparation for the declaration of an outbreak. IMPLICATIONS: Wastewater surveillance acted as an advanced notification leading to the timely deployment of enhanced testing prior to clinical presentation in a population with known vulnerabilities. Wastewater surveillance at the facility level is beneficial, particularly in high-risk congregate living settings such as shelters that house transient populations where clinical testing and vaccination can be challenging. Open communication, established individual facility response plans, and a balanced threshold for action are essential to an effective wastewater surveillance program

dc.identifier.citation

Akingbola S, Fernandes R, Borden S, Gilbride K, Oswald C, Straus S, Tehrani A, Thomas J, Stuart R. Early identification of a COVID-19 outbreak detected by wastewater surveillance at a large homeless shelter in Toronto, Ontario. Can J Public Health. 2023 Feb;114(1):72-79. doi: 10.17269/s41997-022-00696-8. Epub 2022 Sep 26.

dc.identifier.doi

https://doi.org/10.17269/s41997-022-00696-8

dc.identifier.issn

1920-7476

dc.identifier.pubmedID

36156197

dc.identifier.uri

https://open-science.canada.ca/handle/123456789/1450

dc.language.iso

en

dc.publisher

The Canadian Public Health Association

dc.rights - en

Creative Commons Attribution 4.0 International (CC BY 4.0)

dc.rights - fr

Creative Commons Attribution 4.0 International (CC BY 4.0)

dc.rights.openaccesslevel - en

Gold

dc.rights.openaccesslevel - fr

Or

dc.rights.uri - en

https://creativecommons.org/licenses/by/4.0/

dc.rights.uri - fr

https://creativecommons.org/licenses/by/4.0/deed.fr

dc.subject - en

Health

dc.subject - fr

Santé

dc.subject.en - en

Health

dc.subject.fr - fr

Santé

dc.title - en

Early identification of a COVID-19 outbreak detected by wastewater surveillance at a large homeless shelter in Toronto, Ontario

dc.type - en

Article

dc.type - fr

Article

local.article.journalissue

1

local.article.journaltitle

Canadian Journal of Public Health

local.article.journalvolume

114

local.pagination

72-79

local.peerreview - en

Yes

local.peerreview - fr

Oui

Download(s)

Original bundle

Now showing 1 - 1 of 1

Name: akingbola-early-identification-covid-outbreak-wastewater-toronto.pdf

Size: 697.1 KB

Format: PDF

Download file