Summary

Bronchiolitis: Epidemic on the rise. Accounts for 27% of diagnoses recorded in emergency departments (the most common condition for the third consecutive week).RSV positivity rate = 52% at Rennes University Hospital (out of 81 samples) and 12% at Brest University Hospital (out of 42 samples).

Bronchitis: On the rise, particularly among children under 5 years of age. Onset earlier than in the previous two years.