Key Points

Flu-like Illnesses and Acute Respiratory Infections

• In hospitals, the number of emergency department visits for flu-like illness was decreasing among those under 15 and stable among those over 15. The number of hospitalizations following an emergency department visit continued to decrease across all age groups.

• In the community, the number of SOS Médecins calls for influenza-like illness was declining among those over 15 and stable among those under 15.

• The indicators were gradually returning to their baseline levels.

Acute Gastroenteritis

• Increase in emergency department visits and visits followed by hospitalization for acute gastroenteritis across all age groups; 83% of emergency department visits for acute gastroenteritis involved those under 15 years of age and 59% those under 5 years of age.

• Stabilization in the number of cases of acute gastroenteritis at SOS Médecins across all age groups.

• Stabilization of the incidence rate for acute diarrhea consultations among sentinel physicians.

• In S14, activity in emergency departments and at SOS Médecins for acute diarrhea had dropped to a moderate level but remained higher than the trends from 2024 during the same period of the year. The 2025 rates are the highest for the 2022–2025 period.

COVID-19

• SOS Médecins: The number of cases for suspected COVID-19 increased across all age groups in S14, particularly among those aged 15–64. Case numbers remained low, however.

• Emergency department visits: The number of visits for suspected COVID-19 increased among adults over 15 years of age. However, case numbers remained low.

• Clusters of ARI cases in long-term care facilities: The number of ARI episodes with a COVID-19 diagnosis reported by long-term care facilities (primarily nursing homes) remained low since late 2024 (between 0 and 6 per week), despite a slight increase observed since Week 11.

• SARS-CoV-2 in wastewater: Detection levels in wastewater continued to rise in Week 14, though there was significant variability in virological indicators in wastewater depending on the treatment plant.

Asthma

• A sharp increase in the number of emergency room visits and the number of visits followed by hospitalization for asthma in Week 14, compared to Week 13, among children aged 2 to 14 and those over 15. These figures are higher than in the same period of the previous two years.

• There was also a sharp increase in the number of asthma-related visits to SOS Médecins for these two age groups.