%0 Journal Article
%T Analysis of 472,688 Severe Cases of COVID-19 in Brazil Showed Lower Mortality in Those Vaccinated against Influenza
%A Daniele Melo Sardinha
%A Diana da Costa Lobato
%A Ana L&#250
%A cia da Silva Ferreira
%A Karla Val&#233
%A ria Batista Lima
%A Ricardo Jos&#233
%A de Paula Souza e Guimar&#227
%A es
%A Luana Nepomuceno Gondim Costa Lima
%J World Journal of Vaccines
%P 28-32
%@ 2160-5823
%D 2021
%I Scientific Research Publishing
%R 10.4236/wjv.2021.113004
%X 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 (<0.0001), and regression showed an almost twofold odds ratio for invasive ventilation, ICU admission, and death in unvaccinated cases. Conclusion: We recommend mass influenza vaccination as an adjuvant in combating the COVID-19 pandemic in Brazil.
%K COVID-19
%K Pandemic
%K Brazil
%K Influenza Vaccine
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=110583