Summary

• During week 36 (September 4–10, 2017), the first week of the new school year, visits to emergency departments and subsequent hospitalizations increased slightly among children aged 2–14 and remained stable in other age groups.

• Emergency room visits for most seasonal conditions were stable or declining, with the exception of visits by children for: - asthma attacks in children under 15, which rose sharply (+132%, or 833 visits), - general malaise in children aged 2–14 (+22%, or 67 visits), - allergies (+12%) among children under 2 years old. There has been a slight increase in hospitalizations following visits for asthma and allergies

• Among the most common conditions, visits for bronchiolitis (+56%) have risen for the third consecutive week, and for gastroenteritis (+6%) among children under 2 years of age. Among 2- to 14-year-olds, there has been an increase in visits for abdominal pain (+14%), neurological disorders (+9%), and trauma (+7%). Among children of all ages, there has been an increase in visits for ENT infections (+14%). Among adults, there has been an increase in visits for alcohol-related issues (+8%) among those aged 15–74 and for abdominal pain (+6%) among those aged 75 and older.