About the Authors

Isabelle Delrieu

Affiliation Agence de Médecine Préventive, Paris, France

Seydou Yaro

Affiliation Centre Muraz, Bobo-Dioulasso, Burkina Faso

Tsidi A. S. Tamekloé

Affiliation Ministry of Health, Lomé, Togo

Berthe-Marie Njanpop-Lafourcade

Affiliation Agence de Médecine Préventive, Paris, France

Haoua Tall

Affiliation Agence de Médecine Préventive, Paris, France

Philippe Jaillard

Affiliation Agence de Médecine Préventive, Paris, France

Macaire S. Ouedraogo

Affiliation Centre Hospitalier Universitaire Souro Sanou, Bobo-Dioulasso, Burkina Faso

Kossi Badziklou

Affiliation Institut National de l'Hygiène, Lomé, Togo

Oumarou Sanou

Affiliation Agence de Médecine Préventive, Paris, France

Aly Drabo

Affiliation Centre Muraz, Bobo-Dioulasso, Burkina Faso

Bradford D. Gessner

Affiliation Agence de Médecine Préventive, Paris, France

Jean L. Kambou

Affiliation Ministry of Health, Ouagadougou, Burkina Faso

Judith E. Mueller

jmueller@aamp.org

Affiliation Agence de Médecine Préventive, Paris, France

Competing Interests

ID, BL, HT, PJ, OS, BDG and JEM work for AMP, which receives unrestricted financial support from Sanofi Pasteur. Other authors do not declare any conflict of interest. The listed conflicts of interest do not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Analyzed the data: ID HT JEM. Wrote the paper: ID JEM. Conceived and designed the surveillance projects: B-MN-L PJ BDG JEM. Implemented the field surveillance: SY TAST HT PJ MSO JLK JEM. Performed the laboratory analyses: B-MN-L KB OS AD. Revised multiple versions of the paper: SY TAST B-MN-L HT PJ MSO KB OS AD BDG JLK. Final approval of the version to be published: ID SY TAST B-MN-L HT PJ MSO KB OS AD BDG JLK JEM.