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Snakebite Envenomations In The Brazilian Amazon: A Little Less Neglected.

Jacqueline Sachett1,2, Fan Hui Wen3, Allyson Guimarães da Costa4

  • 1Universidade do Estado do Amazonas, Escola Superior de Ciências da Saúde, Manaus, AM, Brazil.

Revista Da Sociedade Brasileira De Medicina Tropical
|June 24, 2026
PubMed
Summary
This summary is machine-generated.

Snakebite envenomations disproportionately affect vulnerable Amazonian populations, particularly riverine and indigenous communities, due to limited access to antivenom treatment. Research highlights barriers and proposes culturally tailored solutions to improve care and reduce fatalities from Bothrops atrox bites.

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Area of Science:

  • Tropical Medicine
  • Public Health
  • Epidemiology

Background:

  • Snakebite envenomations represent a significant health burden in the Brazilian Amazon, with *Bothrops atrox* being the most prevalent species.
  • Vulnerable populations, including riverine and indigenous communities, face disparities in accessing essential antivenom treatment, leading to higher incidence and fatality rates.
  • Despite the availability of urban health units, underreporting of cases and lack of timely medical care contribute to preventable deaths.

Purpose of the Study:

  • To present recent research findings on snakebite envenomations in Amazonas, Brazil, focusing on the disease burden in vulnerable groups.
  • To explore clinical, therapeutic, and pathophysiological aspects, including long-term disabilities and barriers to antivenom treatment.
  • To highlight the SAVING Program's efforts in culturally adapting antivenom decentralization and to propose a future research agenda.

Main Methods:

  • Review of epidemiological data and clinical case studies on snakebite envenomations in Amazonas.
  • Analysis of barriers to accessing antivenom treatment in remote and indigenous communities.
  • Evaluation of the SAVING Program's model for culturally tailored antivenom decentralization.

Main Results:

  • *Bothrops atrox* bites are endemic across all municipalities in Amazonas, with riverine and indigenous populations bearing the brunt of the burden.
  • Significant challenges exist in reporting and accessing timely medical care, contributing to mortality.
  • The SAVING Program demonstrated the feasibility of culturally sensitive antivenom decentralization in indigenous health centers.

Conclusions:

  • Snakebite envenomations in the Brazilian Amazon require targeted interventions addressing access barriers for vulnerable populations.
  • Culturally tailored approaches, like the SAVING Program, are crucial for improving antivenom treatment decentralization.
  • A prioritized research agenda is needed to further mitigate the impact of snakebites in the Amazon region.