Coronavirus vaccine booster doses significantly reduce the risk of death from COVID-19, according to a study by researchers from several American institutions, including the Centers for Disease Control and Prevention (CDC). The group analyzed the number of cases and deaths recorded in 25 regions of the country between April and December 2021. They found that infection by the novel coronavirus was much more frequent among the unvaccinated (348 cases per 100,000 people) than the vaccinated (88 cases per 100,000 people) and people who have had a booster dose (25 cases per 100,000 people). The difference was even greater when it came to deaths. The mortality rate was 7.8 per 100,000 people who had not been vaccinated and 0.6 per 100,000 among those who had—and it was just 0.1 per 100,000 people who had taken a third dose (MMWR, January 28). “Vaccination protected against infection by the novel coronavirus even when the Omicron variant became dominant,” the article highlighted.
