“…5 Factors enhancing vaccination are protection of patients, family, self and other people, being a healthcare worker, belonging to the elderly population or being affected by a chronic disease, and finally acknowledging the protctive effect of vaccination. 5,[9][10][11] Ideas preventing vaccination are to not caring about influenza, having doubts about vaccine efficacy, being afraid of adverse effects, being opposed to vaccination, forgetfulness, considering that vaccine do not have a protective effect and thinking of influenza as a mild disease. 5,[9][10][11] The aim of this study is to conduct a systematic review and meta-analysis in order to: (1) estimate the prevalence of influenza vaccinations among nurses and ancillary workers in Italy, by using a pooling of data coming from observational studies; (2) explore all the possible enhancing and hindering factors associated with this kind of vaccination among nurses.…”