Key Points

• An increase in the number of cases was observed starting in week 50 of 2017, which accelerated in week 4 of 2018

• 73% of reported cases reside in Gironde

• 21% were hospitalized (including one fatality)

• 84% of cases were not properly vaccinated (self-reported data)

• More than a quarter of cases (136, or 28%) occurred in clusters (universities, healthcare facilities, schools, traveling communities, etc.)