COVID-19 VACCINATION AND SEROPREVALENCE

Since the emergence of the new coronavirus the covid-19 pandemic has caused over 140 million cases and three million deaths worldwide.Many fundamental questions remain as to the effectiveness of vaccines against COVID-19 in real-life situations which can only be answered by vaccine efficacy studies conducted after their introduction.This document is a synthesis of numerous references on the immunological aspects of SARS-COV-2 infection and vaccination.