1. World Health Organization. WHO website influenza fact sheet; 2009. Retrieved March 27, 2011, from http://www.who.int/mediacentre/factsheets/fs211/en/index.html/.
2. Épidémiologie des pandémies grippales;Flahault;Rev Mal Respir,2008
3. Prevention and Control of Influenza with Vaccines Recommendations of the Advisory Committee on Immunization Practices (ACIP), 2010. MMWR 2010;59(RR08):1–62.
4. French High Committee on Public Health. Avis relatif à l’actualisation de la stratégie vaccinale grippe pour la saison 2010–2011 suite à la déclaration officielle de fin de pandémie par l’OMS, HCSP. September 24, 2010. Retrieved March 27, 2011, from http://www.hcsp.fr/docspdf/avisrapports/hcspa20100924_vaccinationgrippe.pdf.
5. World Health Organization. WHO Weekly Epidemiol Record 2005;33:279–87.