Key Points

• Increase in diphtheria incidence: 6 cases in 2019, 4 cases in 2020, 5 cases in 2021

• Already 6 cases reported as of May 25, 2022

• An infant died in 2022 from cutaneous diphtheria (Tox+)

• Condition likely underdiagnosed in Mayotte due to its disappearance in mainland France

• A risk linked to insufficient vaccination coverage among children as well as adults

• Highly contagious, diphtheria is a notifiable disease!