“Five months after the completion of the vaccination cycle, the effectiveness of the” anti Covid “vaccine in preventing the disease, both in the symptomatic and asymptomatic form, drops from 75% to 44%”. The Higher Institute of Health highlights this in the extended report on Covid-19. Read also “Vaccination efficacy remains high – continues the ISS – in preventing cases of severe disease, as the efficacy for vaccinated with a complete cycle for less than five months is equal to 93% compared to non-vaccinated equal to 85% for those vaccinated with a complete cycle for more than five months compared to those not vaccinated “.