Commonground
Senior Moderator
Week 45, 1–7 November 2025
This week’s topics
1. Overview of respiratory virus epidemiology in the EU/EEA
2. SARS-CoV-2 variant classification
3. Middle East respiratory syndrome coronavirus (MERS-CoV) – Multi-country – Monthly update
4. Seasonal surveillance of chikungunya virus disease – 2025
5. Seasonal surveillance of dengue – 2025
6. Weekly seasonal surveillance of West Nile virus infection – 2025
7. Ebola virus disease – Democratic Republic of the Congo – 2025
8. Rift Valley fever in Western Africa – 2025
9. Cholera – Multi-country (World) – Monitoring global outbreaks – Monthly update
Executive Summary
Overview of respiratory virus epidemiology in the EU/EEA
• In the EU/EEA, the number of patients visiting primary care with symptoms of respiratory illness remains low. However, as expected for this time of year, most countries are reporting an increase. To date, similar increases have not been observed in patients admitted to hospital with respiratory illness.
• Circulation of influenza and respiratory syncytial virus (RSV) remains low but is beginning to increase in some countries. SARS-CoV-2 circulation is still widespread but continues to decrease, following a trend similar to this time last season.
• The increase in circulation of RSV is primarily seen in children aged below fi
Continued: https://www.ecdc.europa.eu/sites/de...cable-disease-threats-report-week-45-2025.pdf
This week’s topics
1. Overview of respiratory virus epidemiology in the EU/EEA
2. SARS-CoV-2 variant classification
3. Middle East respiratory syndrome coronavirus (MERS-CoV) – Multi-country – Monthly update
4. Seasonal surveillance of chikungunya virus disease – 2025
5. Seasonal surveillance of dengue – 2025
6. Weekly seasonal surveillance of West Nile virus infection – 2025
7. Ebola virus disease – Democratic Republic of the Congo – 2025
8. Rift Valley fever in Western Africa – 2025
9. Cholera – Multi-country (World) – Monitoring global outbreaks – Monthly update
Executive Summary
Overview of respiratory virus epidemiology in the EU/EEA
• In the EU/EEA, the number of patients visiting primary care with symptoms of respiratory illness remains low. However, as expected for this time of year, most countries are reporting an increase. To date, similar increases have not been observed in patients admitted to hospital with respiratory illness.
• Circulation of influenza and respiratory syncytial virus (RSV) remains low but is beginning to increase in some countries. SARS-CoV-2 circulation is still widespread but continues to decrease, following a trend similar to this time last season.
• The increase in circulation of RSV is primarily seen in children aged below fi
Continued: https://www.ecdc.europa.eu/sites/de...cable-disease-threats-report-week-45-2025.pdf