Ottawa’s coronavirus wastewater nears record levels – CBC

Last peak was a record in April 2022

Jul 20, 2022

Researchers are projecting that coronavirus wastewater levels in Ottawa could rise further to near-record levels in the coming days.

The average level of coronavirus in Ottawa’s wastewater has been rising since early June amid the highly transmissible BA.5 coronavirus subvariant.

As of Sunday, it’s higher than the peaks of most previous waves, but below the heights reached in January and April 2022.

According to a projection from researchers regularly posting their results on, however, the median wastewater viral signal in the city could soon reach even closer to levels recorded in April.

“They’re very high,” Doug Manuel, a physician and senior scientist at The Ottawa Hospital, said of current levels. “They’re in what I would call the red zone.”

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