Réunion Island Faces Whooping Cough Resurgence with Cases More Than Tripling
Public health officials on Réunion Island are reporting a notable increase in whooping cough cases this year, with 107 cases identified between July 1st and September 28th, 2025 - a dramatic rise compared to the 31 cases reported during the same period in 2024. the surge is prompting renewed calls for vaccination, especially booster shots, to protect vulnerable populations.
Whooping cough, also known as pertussis, is a highly contagious respiratory infection that can be particularly hazardous for infants, pregnant women, and individuals with compromised immune systems. While vaccination coverage remains high among young children aged 24 to 59 months (96.7%), protection wanes with age, dropping to 72.9% in 7-8 year olds,80.2% in 14-15 year olds,and a concerning 36.7% among adults who have received the third booster dose. This decline in adult immunity is believed to be a key factor in the current outbreak.
Data from Public Health France indicates that vaccination remains the most effective strategy to control the spread of whooping cough. Health authorities are emphasizing the importance of booster shots to maintain immunity and safeguard those most at risk.
