Key Points

Asthma

• Upward trend in SOS Médecins indicators tracked since the start of the school year. There was an increase in the number of emergency room visits in week 38 compared to week 37, primarily affecting children under 15. In week 38, the number of emergency room visits by children under 5 decreased, while those by children aged 5–14 continued to rise. An increase in asthma attacks is typically observed each year around the start of the school year.

Bronchiolitis

• Low activity despite a sharp increase in emergency room visits in week 38 compared to week 37 (low case numbers) as well as a slight increase in SOS Médecins indicators tracked over the past few weeks. Sporadic detection of RSV according to the Virology Laboratory at Rennes University Hospital; no detection of RSV according to the Virology Laboratory at Brest University Hospital in week 38.

Heat-related illness (HRI)

• The seasonal surveillance system has been extended until September 30. The Ille-et-Vilaine department was placed under a yellow heat wave alert from September 4 to 9, 2023, coinciding with a rise in indicators related to heat-related illnesses. Outside of these dates, Brittany has been under a green heat wave alert since the start of surveillance.