National influenza surveillance systems in five European countries: a qualitative comparative framework based on WHO guidance

• Thierry Rigoine de Fougerolles
• Oliver DammSanofi (Germany)
• Filippo AnsaldiUniversity of Genoa
• Maria ChironnaUniversity of Bari Aldo Moro
• Pascal CrépeyCentre National de la Recherche Scientifique
• Simon de LusignanUniversity of Oxford
• Ian GraySanofi (Brazil)
• José Maria GuillenSanofi (Spain)
• George C. KassianosRoyal College of General Practitioners
• Anne Mosnier
• Raúl Ortíz de Lejarazu
• Elena ParianiUniversity of Milan
• Joan Puig‐BarberàFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana
• Jörg SchellingLudwig-Maximilians-Universität München
• Francesca TrippiSanofi (Italy)
• Philippe VanhemsLyon 1 Université
• Klaus WahleUniversity of Münster
• John WatkinsCardiff University
• Anvar RasuliSanofi (France)
• Olivier Vitoux
• Hélène BricoutSanofi (France)