About the Authors

Mala Rakoto-Andrianarivelo

Affiliation Unité de Virologie Médicale, Institut Pasteur de Madagascar, Antananarivo, Madagascar

Sophie Guillot

Affiliation Département Infection et Epidémiologie, PTMMH, Institut Pasteur, Paris, France

Jane Iber

Affiliation National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Jean Balanant

Affiliation Département de Virologie, Biologie des Virus Entériques, Institut Pasteur, Paris, France

Bruno Blondel

Affiliation Département de Virologie, Biologie des Virus Entériques, Institut Pasteur, Paris, France

Franck Riquet

Affiliation Département de Virologie, Biologie des Virus Entériques, Institut Pasteur, Paris, France

Javier Martin

Affiliation Division of Virology, National Institute for Biological Standards and Control, Potters Bar, Hertfordshire, United Kingdom

Olen Kew

Affiliation National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Bakolalao Randriamanalina

Affiliation Programme Elargi de la Vaccination, Ministère de la Santé, du Planning Familial et de la Protection Sociale, Antananarivo, Madagascar

Lalatiana Razafinimpiasa

Affiliation Direction Régionale de la Santé Atsimo Andrefana, Ministère de la Santé, du Planning Familial et de la Protection Sociale, Toliara, Madagascar

Dominique Rousset

Affiliation Unité de Virologie, Centre Pasteur du Cameroun, Yaoundé, Cameroun

Francis Delpeyroux

To whom correspondence should be addressed. E-mail: delpeyro@pasteur.fr

Affiliation Département de Virologie, Biologie des Virus Entériques, Institut Pasteur, Paris, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

MRA, DR, and FD conceived and planned the study. MRA, BR, LR, and DR contributed to the field investigations and to viral isolation. MRA, SG, JI, JB, and OK did the sequencing. MRA, SG, and FD did the phylogenetic analysis. JM performed the antigenic analysis. JB, FR, and FD contributed to the genetic and phenotypic analysis. BB and FD wrote the manuscript. All the investigators contributed to the revision of the report and agreed to its final content.