Every year, an outbreak of bronchiolitis is observed in emergency departments during the southern hemisphere summer. The 2016–2017 season was marked by a late start to the bronchiolitis outbreak, likely due to unusually low rainfall for this time of year and the start of the school year. After a slight decline in bronchiolitis activity in week 11, the proportion of visits for bronchiolitis rose again last week (+6%).In total, since the start of the outbreak, 489 cases of bronchiolitis in children under 2 years of age have been recorded, and 45% of them were hospitalized for this condition. In light of this outbreak, it is important to remind the public of appropriate preventive measures.