Compare the efficacy of Moderna and Pfizer vaccines.

 

The New England Journal of Medicine presents a comparative study of the efficacy in preventing infection with the COVID-19 mRNA-1273 Moderna and Pfizer BNT162B2 vaccine in Qatar. by assessing the incidence of infection with COVID-19 After receiving the 1st and 2nd dose of the Moderna and Pfizer vaccines between December 21, 2020 - October 20, 2021

The study found that of 192,123 people who received 2 doses of the Moderna vaccine, a total of 878 people were infected, of which only three had severe symptoms requiring hospitalization. But there were no severe cases or deaths. in the group of those who received A total of 192,123 cases of Pfizer vaccine have been completed with 2 doses, with a total of 1,262 infected, of which 7 were severely ill and 1 died. Infections occurring after vaccination in both groups were associated with decreased immunity over time.

Six months after the second vaccination follow-up, 0.59% of the Moderna vaccinated group had cumulative infections. Sir The cumulative number of infections after vaccination was higher, at 0.84%.

It also found that among the population vaccinated with Moderna, they are more likely to contract COVID-19. The difference between the two vaccines was seen three weeks after the first dose of vaccine.

However, in conclusion, the Moderna vaccine The rate of infection after vaccination was lower compared to Pfizer vaccine This is consistent with previous research showing different levels of immunity in people who received both vaccines.