ArticleInternational journal for equity in health2021
High prevalence of anti-SARS-CoV-2 IgG antibody in the Xikrin of Bacajá (Kayapó) indigenous population in the brazilian Amazon.
Article in International journal for equity in health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.
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Who cites it
17 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Impact of Coronavirus Disease (COVID)-19 on the Indigenous Population of Brazil: A Systematic Review.Journal of racial and ethnic health disparities · 2026Pooled it
- Seroprevalence of SARS-CoV-2 in Brazil: A systematic review and meta-analysis.Clinics (Sao Paulo, Brazil) · 2023Pooled it
- Increased vulnerability to SARS-CoV-2 infection among indigenous people living in the urban area of Manaus.Scientific reports · 2021Trial
- Socioecology and Prevalence of SARS-CoV-2 Infection in Quilombolas Living in the Brazilian Amazon.American journal of human biology : the official journal of the Human Biology Council · 2025Article
- SARS-CoV-2 Detection and Persistence in a Remote Amazonian Settlement.Journal of tropical medicine · 2025Article
- Unraveling the protective genetic architecture of COVID-19 in the Brazilian Amazon.Scientific reports · 2024Article
- Severe Acute Respiratory Syndrome (SARS) in the Context of the COVID-19 Pandemic Among Indigenous Peoples of Brazil: Epidemiology and Risk Factors Associated with Death.Journal of racial and ethnic health disparities · 2024Article
- Humoral immune response to SARS-CoV-2 and endemic coronaviruses in urban and indigenous children in Colombia.Communications medicine · 2023Article
- Metapopulation dynamics of SARS-CoV-2 transmission in a small-scale Amazonian society.PLoS biology · 2023Article
- Seroprevalence Of SARS-COV-2 infection in asymptomatic indigenous from the largest Brazilian periurban area.PloS one · 2023Article
- Severe Acute Respiratory Syndrome by SARS-CoV-2 Infection or Other Etiologic Agents Among Brazilian Indigenous Population: An Observational Study from the First Year of Coronavirus Disease (COVID)-19 Pandemic.Lancet regional health. Americas · 2022Article
- Anti-SARS-CoV-2 antibodies among indigenous populations of the Brazilian Amazon: a cross-sectional study.BMJ open · 2022Article
- COVID-19 epidemic in remote areas of the French Amazon, March 2020 to May 2021: Another reality.Revista da Sociedade Brasileira de Medicina Tropical · 2022Article
- Retrospective epidemiology of the SARS-CoV-2 (and COVID-19) epidemic among 27 Brazilian cities.Journal of clinical virology plus · 2021Article
- Migration in times of pandemic: SARS-CoV-2 infection among the Warao indigenous refugees in Belém, Pará, Amazonia, Brazil.BMC public health · 2021Article
- The potential for vaccination-induced herd immunity against the SARS-CoV-2 B.1.1.7 variant.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2021Article
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9 authors.
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Abstract
The COVID-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) reached the Brazilian Amazon and spread among indigenous populations. In the present study, we demonstrate a high prevalence of infection among the Xikrin of Bacajá people (Kayapó). A sample of 100 individuals of both sexes (51 men and 49 women) with ages ranging from 2 to 82 years were clinically evaluated and tested for the presence of anti-SARS-CoV-2 IgG antibody. Among all investigated individuals, 58 were IgG-reactive (58 %) by a rapid test, and 73 (73 %) were reactive in an enzyme-linked immunosorbent assay, with no difference between sexes. Oxygen saturation ranged from 82 to 99 %, with the lowest value observed in a two-year-old girl. The results show that as expected, SARS-CoV-2 infection rapidly reached more than 70 % of the population, most likely because of the difficulties of maintaining social distance due to cultural characteristics. These results highlight the importance of indigenous health policies as a means of minimizing the impact of the pandemic on these communities.
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