ImpulsoGov study shows that vaccination may have saved more than 8,700 lives in the State of Rio de Janeiro

An unprecedented study developed by the Brazilian public health NGO ImpulsoGov points out that vaccination may have been responsible for saving more than 8,700 lives in the state of Rio de Janeiro. 

The reduction in deaths was most significantly observed among people over 60 years of age. This group, which concentrated the highest mortality rates by COVID-19 in the state, is already, for the most part, with the complete vaccination schedule. Below this age group, there are still few fully immunized groups.

The research also points out that vaccination had a reducing impact on the number of deaths of more than 45% and, in case of absence in the advancement process, we could have observed daily peaks of more than 350 deaths. The study also brings other relevant numbers on the history of vaccination against COVID-19 in the state.

For João Abreu, executive director of the NGO ImpulsoGov, the effectiveness of vaccination is unquestionable and the experience of Rio de Janeiro reinforces this fact, with more than 8,000 lives saved. However, it is necessary to maintain the pace of vaccination to achieve the desired collective immunity and, therefore, it is essential that all citizens get vaccinated, regardless of the type of vaccine offered at the time of vaccination. “All vaccines authorized by ANVISA are safe, effective and significantly reduce the risk of death or serious infection with COVID-19. Therefore, getting vaccinated is essential.” 

Abreu also emphasizes that preventive measures such as using a mask and distancing must be maintained even after vaccination: "although it protects us against serious infections, the vaccine does not prevent us from coming into contact with the virus and eventually infecting other people, so it is very important to keep the mask, social distance and prefer open or well-ventilated places, even after complete immunization" .

Evolution of vaccines applied in the state

The ImpulsoGov study points out that by April 2021, most people had been immunized with Coronavac. Between April and June, however, the predominance of immunization was done with the Oxford-AstraZeneca vaccine. Since then, there has been a significant increase in immunizations made with Pfizer and Janssen vaccines.

Percentage of vaccine immunizations in the state

The study indicates that currently 46.0% of the population has been vaccinated with Oxford-AstraZeneca, 42.7% with Coronavac, 9.0% with Pfizer and 2.3% with Janssen. Most of the over 80-year-old group was vaccinated with Coronavac. Between 75 and 80 years there is parity between Oxford-AstraZeneca and Coronavac. Those aged between 65 and 75 years were mostly immunized with the Oxford-AstraZeneca vaccine. Among the under 60-year-old groups, about 50% received doses of Oxford-AstraZeneca vaccine and 25% of Pfizer's Comirnaty vaccine.