Key Points

Gastroenteritis

• The seasonal gastroenteritis epidemic continues, with a 21.2% decrease in rotavirus A-positive samples in week 42, while the positivity rate remains stable at around 26.6%.
• There was a decrease in emergency department visits for gastroenteritis among children under 5 years of age, with 21 visits in week 42 compared to 26 in week 41. Hospitalizations resulting from these visits also decreased, from 9 to 3.
• A seasonal epidemic less severe than in 2025, with a pattern more closely resembling that observed in 2024

Influenza

• Increase in the number of positive influenza test results, rising from 28 in Week 41 to 42 in Week 42, with a positivity rate that remains high (27.8%). The influenza outbreak entered the epidemic phase in Week 42.
• Influenza A(H1N1) was the predominant respiratory virus detected. One new admission to the intensive care unit was reported in Week 42, bringing the cumulative number of severe influenza cases to five.