Ottawa sees rise in COVID test positivity rate, wastewater, outbreaks

Though there were no new deaths in Ottawa Public Health's latest update, several COVID-19 indicators are rising.

More than 3 times more COVID in Ottawa compared to same period in 2021

People wearing masks walk through downtown Ottawa last September during the fourth wave of the COVID-19 pandemic. The city continues to live in the seventh wave. (Trevor Pritchard/CBC)

Recent developments:

  • Ottawa's test positivity rises again.
  • No new deaths over the weekend in Ottawa.
  • There are now 33 COVID-19 outbreaks in the capital.
  • The Belleville area has now reported 15 COVID deaths this month.

The latest Ottawa update


The weekly average level of coronavirus in Ottawa's wastewater has been slowly rising this month.

As of Sept. 15, levels were more than three times higher than they were one year ago.

Researchers measuring and sharing the amount of novel coronavirus in Ottawa's wastewater found the weekly average most recently peaked July 10. The most recent data is from Sept. 15. (


Thirty Ottawa residents have been admitted to a city hospital with COVID-19, according to OPH's latest update. That's slightly higher than the last update. 

Three patients are in intensive care.

The hospitalization figures above don't include all patients. For example, they leave out patients admitted for other reasons who then test positive for COVID-19, those admitted for lingering COVID-19 complications, and those transferred from other health units.

The number that includes those kinds of patients dropped from mid-July until the end of August and has slightly risen in September.

Tests, outbreaks and cases

Testing strategies changed under the Omicron variant, meaning many COVID-19 cases aren't reflected in current counts. Public health officials now only track and report outbreaks in health-care settings.

Ottawa's test positivity rate has risen over the last week to just over 12 per cent.

There are currently 33 active COVID outbreaks in Ottawa, up from 25 at the last update.

OPH reported 219 more cases over four days and no new deaths. 


As of the most recent weekly update, 93 per cent of Ottawa residents age five and up had at least one COVID-19 vaccine dose, 90 per cent had at least two and 60 per cent at least three.

Twenty-three per cent of Ottawans age 12 and over had at least four. Children 12 to 17 are only eligible if they're significantly immunocompromised.

About 7,500 residents under age five have had a first dose, which is about 16 per cent of Ottawa's population of that age. That's almost 300 more doses over seven days.

Across the region


As of the most recent update, wastewater levels are stable or rising in Kingston. They're dropping in Brockville and rising in Smiths Falls.

Data from other areas is out of date or unavailable.

The Eastern Ontario Health Unit (EOHU)'s COVID test positivity has risen again. It was at nine per cent on Sept. 9, and sat at 17.5 per cent on Tuesday.

Hospitalizations and deaths

Western Quebec's health authority, CISSSO, is reporting 77 COVID hospitalizations in its weekly update. One of those patients is in intensive care.

Eastern Ontario communities outside Ottawa are reporting about 40 COVID hospitalizations, which is stable. Seven of those patients are in intensive care.

That count doesn't include Hastings Prince Edward (HPE) Public Health, which has a different counting method. It is reporting a stable 33 hospitalizations with a rising four patients in intensive care and five more COVID deaths for a total of 82. 

HPE has reported 15 COVID deaths this month. It reported 19 in all of 2020 and 2021. The EOHU reported two COVID deaths in the last week and the Kingston area reported one.


Across eastern Ontario, between 81 and 92 per cent of residents age five and up have received at least two vaccine doses and between 52 and 64 per cent of those residents have had at least three.