Summary

• During week 39 (September 25–October 1, 2017), the increase in overall activity tended to stabilize across all age groups. Hospitalizations following emergency department visits rose slightly among children under 2 years of age (+7%) and remained stable in other age groups.

• Among emergency department visits for seasonal illnesses, the following stand out: - among children under 15 years of age, a decrease in visits for asthma (-26%) and, more specifically among those under 2 years of age, an increase in visits for general malaise (+25%, or +28 visits), bronchiolitis (+17%, or +147 visits), and acute bronchitis (+47%, or +56 visits), - among adults aged 15 and older, an increase in visits for acute bronchitis (+24%, or +332 visits), and- more specifically among adults aged 75 and older, a slight increase in visits for most diagnoses with low patient numbers. The share of visits for asthma attacks and acute bronchitis among adults, bronchiolitis among children under 2 years of age, and ENT conditions in total activity is higher than in the previous two years.

• Among the most common conditions, excluding seasonal illnesses, there was an increase in visits for dermatological issues among children under 2 years old (+19%, +34 visits) and neurological disorders among 2- to 14-year-olds (+6%). Among adults, there was an increase in visits for anxiety disorders (+11%) among those aged 15–74, as well as for heart failure (+17%) and pneumonia (+19%) among those aged 75 and older.