Summary

• In 2016, among children aged 24 months in the Île-de-France region: - vaccination coverage for the "DTP, pertussis, and Hib booster" was 95% or higher in all departments of the Île-de-France region, except in Paris.- The increase in the "hepatitis B 3-dose" vaccination coverage that began in 2006 across all departments in the region continued through 2016, except in Paris, where coverage has remained stable at 91% since 2014.- The regional "pneumococcal 3-dose" vaccination coverage is at the national average of 93%, with a stable or downward trend between 2014 and 2016 in departments 75, 78, 91, and 95. - The "MMR 2-dose" vaccination coverage is generally higher than the national average (85% vs. 80%), but insufficient to prevent any epidemic risk. - The "BCG" vaccination coverage was similar to that of the previous two years (84% and 86%), with regional disparities.

• Between 2015 and 2017, "Meningococcal C" vaccination coverage in the Île-de-France region was far too low to ensure herd immunity, particularly among adolescents and young adults.

• Regardless of birth cohort (1999–2001), HPV vaccination coverage (full series by age 16) is very low in the Île-de-France region as well as nationally, with at most one in five adolescent girls having completed the vaccination series.

• According to data from the 2017 Health Barometer, there has been a very slight increase in vaccination uptake at the national level (78% of 18- to 75-year-olds compared to 75% in 2016), with uptake in the Île-de-France region being similar to that observed nationally.