Key Points

• According to data from the Unified Influenza Network, a decline in the influenza incidence rate is currently being observed. This decrease is also being observed in the Alsace region.

• Following four weeks during which the number of influenza and influenza-like illness diagnoses remained stable for the region’s two SOS Médecins associations, a sharp decline was observed in week 09.

• However, epidemic activity remains high throughout the country, and influenza viruses continue to circulate. The national influenza epidemic threshold has now been exceeded for 11 consecutive weeks.

• According to data from the hospital laboratory network (Renal) and samples collected by physicians in the GROG Network, influenza viruses of types A(H1N1) pdm09, A(H3N2), and B continue to co-circulate.

• Since October 1, 30 outbreaks of acute respiratory infections (ARI) in elderly care facilities have been reported. Influenza viruses were identified in 50% of these outbreaks, with co-circulation observed in one outbreak.

• In week 09, gastroenteritis was the second most frequently diagnosed condition by the two SOS Médecins associations in Alsace.