Results
Among the 2,653 adults included in this study, a total of 678 (25.6%) received a dTcaP booster vaccine from a pharmacy or pro-pharmacy in 2021. The remaining 1,975 eligible adults were identified by the local CPAM Pole (INT: 67.3% vs. CON: 32.7%) (Fig. 
Study flow chart. *municipal administrative areas, CPAM; The dTcaP booster vaccine delivery between June 2021 and June 2022 occurred for 331 (16.7%) adults and no significant difference concerning the rate of vaccination was found between the two groups (INT: 17.4% vs. CON: 15.5%; p = 0.29) (Table 
Outcomes of an awareness campaign initiated by the French national health insurance for the dTcaP booster vaccine for adults aged 25 years in the 19 cantons of the Ardennes region*Ten cantons were randomly selected to constitute the intervention group (INT) and nine cantons made up the control group (CON). †at least once within 12 months after the start of the awareness campaign. CPAM; 