Health Monitoring in Bourgogne-Franche-Comté. Bulletin dated January 9, 2025.

Published on 9 January 2025

Key points

6th week of the epidemic
Bronchiolitis-related activity has risen to 15.2% (vs. 14.3% in Week 1) of all emergency department visits. Activity remains at around 6% of SOS Médecins calls in Week 1. It is lower than in the two previous winters.
The rate of bronchiolitis hospitalizations among all coded hospitalizations increased this week (37% vs. 30% in Week 1).

5th epidemic week
Medical activity related to influenza care continued to rise in Week 1 of 2025 (the week of New Year’s Day), exceeding the peak recorded during the two previous seasons: 6.0% of influenza cases (vs. 5.4% in W1) among emergency department visits and 24.9% (vs. 21.8% in W1) among SOS Médecins calls.

Since September 30, 2024, 163 clusters of acute respiratory infections (ARI) have been reported. The number of new clusters was low between Week 42 (mid-October) and Week 48 (late November). The number of reports has been trending upward since then (data not yet consolidated for Week 1).
In total, 80 ARI outbreaks were attributed exclusively to COVID-19 and 38 outbreaks were attributed exclusively to influenza, 60% of which occurred in weeks 52 and S01. The number of influenza outbreaks has exceeded the number of COVID-19 outbreaks since week 50. Since Week 40, 8 episodes of COVID-19/influenza co-infection have been reported (including 3 in Week 51). Two episodes were attributed exclusively to RSV.

Low activity.
The SARS-CoV-2 virus continues to circulate at low levels in Bourgogne-Franche-Comté, as in other regions. The proportion of cases handled by SOS Médecins and emergency departments for suspected COVID-19 remains low.