According to the evidence demonstrating vaccines' safety and effectiveness in anticipation of and during pregnancy, several countries have established immunization programs during the periconceptional period. Here, we evaluated vaccination status among 220 mother-child pairs, using data from the 'Mamma & Bambino' cohort. The self-reported data were evaluated at delivery, and with planned follow-ups at 1-2 years after delivery. In general, we noted that the vaccination status among the women was heterogeneous, ranging from 8.3% (vaccine against Human Papillomavirus, HPV) to 65.6% (vaccine against Diphtheria Tetanus and Pertussis, DTaP). Excluding the women who contracted the diseases in the past, the main ground for refusal was the lack of information. We also demonstrated that increasing age was associated with higher odds of not being vaccinated against Measles-Mumps-Rubella (MMR; OR = 1.12; 95% CI = 1.04-1.21; p = 0.004), HPV (OR = 1.20; 95% CI = 1.08-1.33; p = 0.001) and DTaP (OR =1.09; 95% CI = 1.01-1.18; p = 0.040). As expected, we showed that the proportion of newborns vaccinated with the Hexavalent and Pneumococcal vaccines was high (99.5% and 98.6%, respectively), while the vaccination coverage against MMRV did not reach the auspicated threshold (84.1%). Overall, these results underlined the need for the improvement of women's knowledge about the recommendations for vaccination, especially during pregnancy.
Keywords: birth cohort; communicable diseases; pregnancy; public health; vaccine hesitancy.