ArticleRevista de saude publica2022
Covid-19: temporal evolution and immunization in the three epidemiological waves, Brazil, 2020-2022.
Article in Revista de saude publica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
51 citing papers in PubMed.
- Predictors of dropout in cognitive behavior and interpersonal online brief psychotherapies for essential professionals during the COVID-19 pandemic.Scientific reports · 2024Trial
- Territorial Vulnerabilities and Healthcare Capacity During the COVID-19 Pandemic: A Spatiotemporal Study of Hospitalizations and Mortality in a Large Metropolitan Area in Brazil.International journal of environmental research and public health · 2026Article
- Quantifying Epidemiological Risk Transitions of COVID-19 in the Brazilian State of Ceará (2020-2023): A Generalized Linear Modeling Approach.Epidemiologia (Basel, Switzerland) · 2026Article
- COVID-19 Mortality and Temporal Trends in a Mid-Sized Southern Brazilian City (2020-2023): A Population-Based Retrospective Study.Health science reports · 2026Article
- Observational
- Work environment of nurses and technicians in Brazilian Intensive Care Units during the COVID-19 pandemic: a multicenter cross-sectional study.BMC health services research · 2026Article
- Trends and spatial distribution of pediatric second-dose COVID-19 vaccination coverage: a temporal analysis, Brazil, 2022-2023.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2026Article
- Precarious work and Covid-19: repercussions on the health of primary health care workers.Revista de saude publica · 2026Article
- Primary health care response to tuberculosis treatment in Brazilian cities during the COVID-19 pandemic: a mixed-method study.Global health action · 2025Article
- Comparison between the characteristics and outcomes of patients hospitalized for COVID-19 in three waves of the pandemic: a retrospective analysis.Infectious diseases of poverty · 2025Article
- Role of the Inflammasome Pathway According to the Expression of Proteins and Genetic Polymorphisms in COVID-19 Patients.International journal of molecular sciences · 2025Observational
- Changes in the frequency of food orders and food choices on meal delivery apps during the COVID-19 pandemic in a Brazilian metropolitan region.BMC public health · 2025Article
- Dataset on Brazilian Municipal Health Policies During the COVID-19 Pandemic.Scientific data · 2025Article
- Influence of HLA Class I and II Polymorphisms on COVID-19 Severity in a South Brazilian Population.International journal of molecular sciences · 2025Article
- Persistent cognitive symptoms in mild COVID-19 infection: a retrospective cohort study.BMC infectious diseases · 2025Article
- Combining machine learning and dynamic system techniques to early detection of respiratory outbreaks in routinely collected primary healthcare records.BMC medical research methodology · 2025Article
- Unraveling relevant cross-waves pattern drifts in patient-hospital risk factors among hospitalized COVID-19 patients using explainable machine learning methods.BMC infectious diseases · 2025Article
- Influence of the Covid-19 pandemic on cerebrovascular diseases in the Sao Paulo region of Brazil.Communications medicine · 2025Article
- Mortality and potential years of life lost due to COVID-19 among healthcare workers in Bahia, 2020-2022.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025Article
- Laboratory readiness and genomic surveillance of Covid-19 in the capital of Brazil.PLOS global public health · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveDescribe the temporal evolution of morbimortality due to Covid-19 and vaccination coverage during the health emergency in Brazil.
methodsNumber of cases and deaths due to Covid-19 were extracted from the public panel of the Brazilian Ministry of Health, according to epidemiological week (EW) and geographic region. Data on vaccines and variants were obtained, respectively, from the Information System of the National Immunization Program and the Genomic Surveillance System of SARS-CoV-2.
resultsThree peaks of deaths characterized the evolution of the Covid-19 pandemic: in EW 30 of 2020, in the EW 14 of 2021 and in the EW six of 2022; three case waves, starting in the North and Northeast regions, with higher rates in the third wave, mainly in the South region. Vaccination started in the epidemiological week three of 2021, rapidly reaching most of the population, particularly in the Southeast and South regions, coinciding with a reduction exclusively in the mortality rate in the third wave. Only from the beginning of the second wave, when Gama was the dominant variant, 146,718 genomes were sequenced. From the last EW of 2021, with vaccination coverage already approaching 70%, the Omicron variant caused an avalanche of cases, but with fewer deaths.
conclusionsWe noticed the presence of three waves of Covid-19, as well as the effect of immunization on the reduction of mortality in the second and third waves, attributed to the Delta and Omicron variants, respectively. However, the reduction of morbidity, which peaked in the third wave during the domination of the Omicron variant, remained the same. The national and centralized command of the pandemic confrontation did not occur; thus, public administrators took the lead in their territories. The overwhelming effect of the pandemic could have been minimized, if there had been a coordinated participation of three spheres of the Brazilian Unified Health System administration, in the joint governance of the pandemic fight.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.