Key Points

• Measles resurgence since November 2017, with an epidemic peak in Week 13

• As of May 4, 2018, 2,152 cases reported since November 6, 2017 (+81 cases since the last epidemiological bulletin, Week 17)

• More than 2,070 cases (96%) reported since January 1, 2018

• 81 departments have reported at least 1 case, a number that has risen since the last bulletin

• 48% of cases (n=1,036) were reported in the Nouvelle-Aquitaine region, the only region experiencing an epidemic

• Highest incidence among children under 1 year of age: 21.4 cases per 100,000 inhabitants

• 21% of reported cases were hospitalized

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