Barriers and facilitators regarding influenza and pertussis maternal vaccination uptake : a multi-center survey of pregnant women in Italy

Objective: In 2017, the Italian Ministry of Health issued the new 2017-19 National Plan of Vaccine Prevention and pregnant women were targeted to be vaccinated against influenza and pertussis. Our study aim was to assess the barriers and facilitators regarding maternal immunization acceptance among pregnant women after the launch of this program. Study design: We conducted a multi-center survey in three Italian cities between March and June 2018. Collected data were analyzed anonymously, and included information about current recommendations of maternal immunization, antenatal care characteristics and reasons for accepting or rejecting vaccination. Results: A total of 743 pregnant women completed the survey. Half of the study population were aged 25–35 years and 88 % were Italian. Only 18 % pregnant women received advice to be vaccinated. In this group, the vaccine was recommended in most cases by an obstetrician-gynecologist (68 %) and during a routine antenatal visit (74 %). Self-reported influenza and pertussis vaccination coverage was 6.5 % (95 % confidence interval, 4.9 %–8.5 %) and 4.8 % (95 % confidence interval, 3.5 %–6.6 %), respectively. The main vaccination barriers identified were lack of vaccine recommendation by any health-care provider (81 %) and safety concerns (18 %). Respondents mentioned the willingness to protect their offspring (82 %) and themselves (66 %) and having received immunization advice by a maternal care provider (62 %), as the main vaccination facilitators. Conclusions: Lack of immunization advice by health-care providers and safety concerns were the main vaccination barriers against influenza and pertussis, among surveyed pregnant women. Vaccine delivery in the antenatal care setting could lead to increase of vaccine acceptance among pregnant women.