Key points

• Early and prolonged epidemic (early December to late March)

• Two successive waves: circulation of the A(H1N1)pdm09 virus followed by the B/Yamagata virus

• Significant peak in late December and a second, less intense peak in early March

• Moderate-intensity outbreak in outpatient settings

• High numbers of emergency department visits and hospitalizations

• High number of severe cases admitted to intensive care (165 cases)

• 125 clusters of acute respiratory infections in nursing homes

• 915 excess deaths, primarily among those aged 75 and older

• Vaccination coverage of 48.9% against a target of 75% for all at-risk groups