Key Points

• Measles resurgence since November 2017

• Decline in the number of new weekly cases since Week 13 (epidemic peak)

• As of May 18, 2018, 2,284 cases reported since November 6, 2017 (+53 cases since the last epidemiological bulletin, S19)

• 83 departments have reported at least 1 case; this number has remained stable since the last bulletin

• 47% of cases (n=1,072) have been reported in the Nouvelle-Aquitaine region. The number of weekly cases has also decreased significantly in the region since Week 13

• 1 case imported from mainland France to French Guiana, with no secondary cases identified

• Highest incidence among children under 1 year of age: 22.8 cases per 100,000 inhabitants

• 21% of reported cases were hospitalized

• 87% of measles cases occurred in unvaccinated or incompletely vaccinated individuals