1. Virology Department, Normandy University, UNICAEN, GRAM EA2656, CHU de Caen, Caen, France
2. National Reference Center for Measles Mumps and Rubella, CHU de Caen, Caen, France
3. Centre Hospitalier de Mayotte, Mamoudzou, Mayotte, France
4. University Paris Sud, INSERM U1193, Villejuif, France
5. Direction des maladies infectieuses, Santé Publique France, Saint-Maurice, France
6. Department of Infection and Immunity, Infectious Diseases Research Unit, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
7. World Health Organization, Regional Office for Europe, Copenhagen, Denmark