Covid-19 vaccine development was a tremendous achievement, but even an efficacy of 95% means five percent of vaccinated people are susceptible to Covid-19. For those people who were vaccinated that were later infected, what happened?
Covid-19 vaccine development was a tremendous achievement, but even an efficacy of 95% means five percent of vaccinated people are susceptible to Covid-19. For those people who were vaccinated that were later infected, what happened?