Key Points

Bronchiolitis (children under 2 years of age) First sharp increase in emergency department visits (+80%). Case numbers are within seasonal averages, accounting for 8% of coded diagnoses. The rise in case numbers is expected to lead to the declaration of the start of the epidemic in the coming weeks.No positive tests for Respiratory Syncytial Virus (RSV) at Brest University Hospital since the start of the season. Viral circulation on the rise according to data from the Virology Laboratory at Rennes University Hospital: positivity rate = 18% out of 51 samples.

Gastroenteritis: An upward trend and above seasonal averages in calls to SOS Médecins since mid-October, accounting for 8.5% of coded diagnoses across all age groups. In hospital emergency departments, an increase in visits by children under 5 years of age.Low activity in primary care: incidence rate of acute diarrhea estimated at 104 cases per 100,000 inhabitants (95% CI [26, 182], unconsolidated Sentinelles data). Circulation of Rotavirus, Norovirus, and Adenovirus.

Asthma: Decrease in SOS Médecins consultations and stabilization of emergency department visits for asthma across all age groups, but continued increase in emergency department visits among those under 15 years of age. Activity within seasonal averages.