The study looked at fully vaccinated people in Italy who died from COVID-19. They compared them to unvaccinated or partially vaccinated individuals who also died from the virus. Data was collected from hospital records and vaccination registries. Three groups were defined: unvaccinated, partially vaccinated with early infection, and fully vaccinated. The findings showed that even fully vaccinated individuals could still die from COVID-19, especially if they tested positive for the virus after completing their vaccination course.