Key Points

• 882 cases were reported in the Nouvelle-Aquitaine region between November 1, 2017, and April 11, 2018

• 63% of reported cases reside in Gironde

• 21% were hospitalized (including one fatality)

• 83% of cases were not properly vaccinated (self-reported data)

• 25% of cases occurred in clusters (universities, healthcare facilities, schools, the traveling community, etc.)

• Circulation of the D8 genotype of the virus only in 2018 and the last two months of 2017 in Nouvelle-Aquitaine (Measles National Reference Center, Caen University Hospital)

• Insufficient vaccination coverage (71–81% depending on the department, with two doses of vaccine by 24 months); 95% coverage is necessary to eliminate the disease

• New cases remain possible and may be identified retrospectively through ongoing investigations