Key points

Bronchiolitis

• Epidemic phase, peak reached from December 11 to 18.

• Bronchiolitis-related activity among children under 2 years of age is decreasing in emergency departments (20% in Week 51 vs. 23% in Week 50). The number of visits has fallen below 300 (vs. >300 in Week 50), indicating that the epidemic peak was reached in Week 50.

• SOS Médecins activity is increasing: more than 30 cases in Week 51 (nearly 12% of cases vs. 8% in Week 50).

Flu

• Epidemic phase, growing slowly.

• Flu-related activity increased in emergency departments (0.9% in W51 vs. 0.8% in W50) and in SOS Médecins procedures (8% in W51 vs. 6% in W50).

• In the region’s long-term care facilities, one cluster of influenza cases was reported (occurrence date in Week 51).

• Since November 2023, 7 severe cases of influenza admitted to intensive care (4 influenza A, 1 influenza B, and 2 not specified) have been reported.

Acute gastroenteritis

• Activity (all ages) at SOS Médecins clinics remains slightly above the levels observed during the same period last year.

• Activity (all ages) in emergency departments remains at the low levels observed during the same period last year.

COVID-19

• The spread of SARS-CoV-2 is slowing in Bourgogne-Franche-Comté. The rate of confirmed cases continues to decline, falling from 56.3 per 100,000 inhabitants in Week 50 to 49.5 in Week 51. The percentage of cases involving suspected COVID-19 among SOS Médecins associations has decreased (4.2% vs. 6.3% in Week 1), as has the rate of emergency department visits (1.6% vs. 2.1% in Week 1).

• In contrast, the proportion of hospitalizations following an emergency department visit is increasing (48.8% vs. 43.2% in Week 1) and primarily involves those aged 65 and older (84.7%).

Mycoplasma pneumoniae lung infection

• An increase in emergency department visits for pneumonia has been evident since the end of summer 2023, with a marked rise between weeks 46 and 48 among those under 15 years of age. The number of visits is significantly higher than that observed during the previous two years. However, the peak appears to have been reached, as a decline in emergency department visits has been observed since week 51.

• Among those aged 15–64 and those aged 65 and older, the increase in emergency department visits for pneumonia continued in week 51 in Bourgogne-Franche-Comté.

• The same trends are observed for SOS Médecins consultations. The current increase is driven by those aged 15–64.