Key Points

Bronchiolitis in children under 2 years of age

• Marked decrease in all bronchiolitis surveillance indicators

• The epidemic peaked in week 44 in the Île-de-France region

• Activity level close to the epidemic threshold

• Thirteenth week of the bronchiolitis epidemic

Influenza and influenza-like illnesses

• Fifth week of the epidemic phase in the Île-de-France region

• First week of decline in surveillance indicators, but vigilance is advised regarding a possible resurgence of cases following a period of holidays and gatherings

• Epidemic level still high

Gastroenteritis and acute diarrhea

• Increase in AED surveillance indicators at SOS Médecins for adults

• Decrease in surveillance indicators for acute gastroenteritis in hospital emergency departments for all ages and among those under 15

• Increase in indicators for the Sentinelles Network

• Low activity level in Île-de-France