Background - Pertussis in infants remains a problem in France, where vaccination recommendations—particularly those targeting parents—are rarely followed. Objectives and methods - In 2009, we studied two interventions at a local maternity ward: providing information and recommending vaccination (if eligible) upon discharge (188 parents, group 1), versus offering to administer the vaccination in the maternity ward for both parents (190 parents, group 2). Vaccination coverage in both groups was reassessed six weeks after discharge. Results - At the start of the study, 8% of parents were up to date on pertussis vaccination. Objective data regarding parental vaccination status were missing in 58% of cases. At the end of the study, half of the parents in Group 1 were vaccinated (53%), versus 64% in Group 2. The strategy of offering vaccination in the maternity ward was the most effective. Conclusion - The promotion of parental vaccinations in the maternity ward by the pediatrician is simple and effective. We discuss the methods, interactions, and complementarity between the perinatal team and the general practitioner. (R.A.)