2021
DOI: 10.1590/1980-549720210041
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Abstract: Objective: To investigate the relation between COVID-19 vaccine coverage and COVID-19-related mortality by age groups in Brazil in 2021. Methods: Secondary data on COVID-19 deaths and vaccination coverage were retrieved to investigate COVID-19 mortality rate (MR) evolution as the vaccination against COVID-19 advanced in Brazil in 2021. Poisson regression with adjustment for age and Brazilian states was used to calculate the MR. Results: By mid-April 2021, MR increased 2 – 3 times compared with the already hi… Show more

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Cited by 12 publications
(12 citation statements)
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References 15 publications
(16 reference statements)
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“…As current situation of COVID-19 pandemic, more vaccine supply is still needed for many countries as vaccine coverage is not enough to prevent mortality [32] , [33] , [34] . Almost half of the world population have received at least one dose of COVID-19 vaccine but accounted for only 2.2% of people in low-income countries [35] .…”
Section: Discussionmentioning
confidence: 99%
“…As current situation of COVID-19 pandemic, more vaccine supply is still needed for many countries as vaccine coverage is not enough to prevent mortality [32] , [33] , [34] . Almost half of the world population have received at least one dose of COVID-19 vaccine but accounted for only 2.2% of people in low-income countries [35] .…”
Section: Discussionmentioning
confidence: 99%
“…Brazil presents a different situation. The country started vaccination at a low rate, due to the delay to acquire vaccines from the federal government [ 60 , 61 ]. However, there was a strong engagement of the population and, after public pressure and the action of political sectors, the rates of vaccination increased in the second semester of 2021.…”
Section: Discussionmentioning
confidence: 99%
“…However, transmission rate of SARS-CoV-2 may be affected by a variety of factors and the emergence of a given variant could not be considered the unique factor to increase such rate [50]. Along several virus-inherent factors such as genetic variability, the lack or misuse of non-pharmaceutical interventions (NPI), social difficulties for diagnosis or late diagnosis, uncontrolled population movement [51], the collapse of the public health system [52], lower vaccination [53], the overtime decrease of the immune protection [52], late or misdecisions taken by authorities [61], and the use of scientifically unproven preventive therapies [56][57][58], are also important factors that might contribute to increase the transmission and case fatality rates. Examples in different countries show that an increase in the movement of people and low widespread adherence to the NPI was observed weeks before the collapse of the public health service, and the consequent increase in the number of cases and deaths [59][60].…”
Section: Discussionmentioning
confidence: 99%