Evaluation of the Impact of the Anti COVID-19 Vaccination Campaign Addressed to the Employees of an Italian Hospital.

Health workers, especially those in patient-facing roles, had a significantly increased risk of COVID-19 infection, having serious outcomes, and risking spreading the virus to patients and staff. Vaccination campaign planning suggests allocating initial supplies of BNT162b2 vaccine to health workers given the importance of early protection to safeguard the continuity of care to patients. The aim of the study is to assess the effectiveness and safety of BNT162b2 vaccine among the health workers of Fondazione Policlinico Universitario Agostino Gemelli IRCCS (FPG). The retrospective cohort study will be conducted among health staff working at the FPG. Vaccination data will collect from hospital records. The primary end points will be vaccine effectiveness and safety.