Story perspectives

COVID Wastewater Levels Rise: Experts Warn of Fall Surge

9/15/2025

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Summary

Story summary

COVID wastewater viral activity is moderate nationally, with high levels in Vancouver, Calgary, Edmonton, Winnipeg, Montreal South, and Prince Edward Island.
Dr. Lynora Saxinger warns of a potential late-summer increase and a fall/winter surge.
Current test positivity among emergency department visits is 8.5%, down from 16.9% in August 2024.
The circulating Omicron subvariant XFG causes mild to moderate illness; vaccines in production should offer protection.
High-risk individuals, especially those over 65, should consider antiviral medications to prevent hospitalization.

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Story summary

COVID wastewater viral activity is moderate nationally, with high levels in Vancouver, Calgary, Edmonton, Winnipeg, Montreal South, and Prince Edward Island.
Dr. Lynora Saxinger warns of a potential late-summer increase and a fall/winter surge.
Current test positivity among emergency department visits is 8.5%, down from 16.9% in August 2024.
The circulating Omicron subvariant XFG causes mild to moderate illness; vaccines in production should offer protection.
High-risk individuals, especially those over 65, should consider antiviral medications to prevent hospitalization.