Summary

• Influenza Surveillance During the 2011–2012 Winter Season in the Provence-Alpes-Côte d'Azur Region

• Surveillance of severe influenza cases during the 2011-2012 winter in Provence-Alpes-Côte d'Azur

• Excess mortality detected during the 2011-2012 winter in the Provence-Alpes-Côte d'Azur region

• Surveillance of acute respiratory infections in long-term care facilities during the 2011-2012 winter in the Provence-Alpes-Côte d'Azur region

• Investigation of an influenza outbreak at the Marseille Departmental Gerontology Center in January and February 2012 and assessment of vaccine efficacy

• Qualitative description, in the Provence-Alpes-Côte d'Azur region, of vaccination practices in long-term care facilities with high influenza vaccination coverage