TITLE:
Analysis of 472,688 Severe Cases of COVID-19 in Brazil Showed Lower Mortality in Those Vaccinated against Influenza
AUTHORS:
Daniele Melo Sardinha, Diana da Costa Lobato, Ana Lúcia da Silva Ferreira, Karla Valéria Batista Lima, Ricardo José de Paula Souza e Guimarães, Luana Nepomuceno Gondim Costa Lima
KEYWORDS:
COVID-19, Pandemic, Brazil, Influenza Vaccine
JOURNAL NAME:
World Journal of Vaccines,
Vol.11 No.3,
July
16,
2021
ABSTRACT: Objective: To analyze the severe cases of COVID-19 in Brazil in 2020 and compare those vaccinated and unvaccinated against influenza in invasive ventilation, admission in Intensive Care Unit (ICU) and deaths. Method: Cross-sectional study with public data from the OpenDataSUS platform, regarding confirmed severe cases for COVID-19 in Brazil in the year 2020. Data were analyzed by SPSS, from the chi-square test of independence and binary logistic regression. Results: The population was 472,688 cases and 177,640 deaths, with a lethality of 37.58% in severe cases. The test of independence was highly significant in vaccinated survivors (