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Haemorrhagic fevers and ecological perturbations

B Le Guenno1

  • 1WHO Collaborating Center for Arboviruses and Hemorrhagic Fever Viruses, Institut Pasteur, Paris, France.

Archives of Virology. Supplementum
|January 1, 1997
PubMed
Summary

Hemorrhagic fevers are zoonotic diseases caused by various viruses, often linked to ecological disruption and human activities. Reducing their impact remains a significant global health challenge.

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Area of Science:

  • * Virology
  • * Epidemiology
  • * Public Health

Background:

  • * Hemorrhagic fevers encompass diverse zoonotic diseases caused by multiple viral families, including Flaviviridae, Arenaviridae, Bunyaviridae, and Filoviridae.
  • * Transmission routes include vectors like mosquitoes and rodents, as well as nosocomial and environmental factors.
  • * Ecological disruption and human activities are primary drivers of viral outbreaks.

Purpose of the Study:

  • * To provide an overview of hemorrhagic fever viruses and their transmission.
  • * To highlight the role of human activities and environmental changes in disease emergence.
  • * To underscore the challenges in controlling these viral threats.

Main Methods:

  • * Literature review of viral families causing hemorrhagic fevers.
  • * Analysis of outbreak origins and contributing factors.
  • * Discussion of transmission dynamics and risk factors.

Main Results:

  • * Hemorrhagic fevers are zoonoses transmitted by various viruses (e.g., yellow fever, Ebola, Marburg, hantaviruses).
  • * Human activities like ecological disruption and poor hospital hygiene significantly increase outbreak risks.
  • * Environmental changes and biological industries also contribute to viral emergence.

Conclusions:

  • * Hemorrhagic fever viruses pose a significant global health concern.
  • * Ecological and societal factors are key drivers of outbreaks.
  • * Limited avenues currently exist for reducing the impact of these diseases.

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