Analysis of 472,688 severe cases of COVID-19 in Brazil showed lower mortality in those vaccinated against Influenza
Sardinha, Daniele Melo
Lobato, Diana da Costa
Ferreira, Ana Lúcia da Silva
Lima, Karla Valéria Batista
Guimarães, Ricardo José de Paula Souza e
Lima, Luana Nepomuceno Gondim Costa
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.
xmlui.dri2xhtml.METS-1.0.item-citationSARDINHA, Daniele Melo et al. Analysis of 472,688 severe cases of COVID-19 in Brazil showed lower mortality in those vaccinated against Influenza. World Journal of Vaccines, v. 11, n. 3, p. 28-32, Aug. 2021.
xmlui.dri2xhtml.METS-1.0.item-decsPrimaryInfluenza Humana / patologia
Vírus da Influenza A / patogenicidade
COVID-19 / patologia
SARS-CoV-2 / patogenicidade
Betacoronavirus / isolamento & purificação
Vacinas contra COVID-19 / análise
Vacinas contra Influenza / análise