Key trends
Weekly summary – October 29, 2026
Current respiratory activity is measured in consideration of recent past respiratory seasons.
Influenza
- RSV test positivity remains low. Wastewater levels are stable and low.
- SARS-CoV-2 test positivity is at low-to-moderate levels. Wastewater levels have increased in many sites in recent weeks and are at moderate-to-high levels. Hospital admissions have remained low.
- The proportions of emergency department and primary care visits for respiratory illness remain at low levels.
- In Canada, indicators of influenza activity remain low but were increasing in the most recent reporting week.
In the USA, seasonal influenza activity is increasing in many parts of the country but remains low.
In the European Union/European Economic Area (EU/EEA), influenza activity is at baseline or low levels overall. Countries are reporting detections in primary and secondary care, with most secondary care detections among adults aged over 65 years.
- In Canada, indicators of RSV activity are stable at very low levels in the most recent reporting week.
In the USA, RSV activity is very low in most areas of the country.
In the EU/EEA, RSV activity is very low.
- In Canada, indicators of COVID-19 activity are low and either increasing or stable in the most recent reporting week.
In the USA, COVID-19 activity remains elevated in some regions but is declining nationally.
In the EU/EEA, SARS-CoV-2 test positivity remains low in primary and secondary care in most countries, but there have been increases in the number of detections.
