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[Haemorrhagic fever viruses, possible bioterrorist use]
Sophie Rigaudeau1, François Bricaire, Philippe Bossi
1Service des maladies infectieuses et tropicales, Groupe hospitalier Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75013 Paris, France.
Summary
Viral hemorrhagic fevers (VHFs) present with fever and bleeding, posing potential bioterrorism threats. Management involves isolation, diagnosis, and ribavirin treatment for specific viral families.
Area of Science:
- Virology
- Infectious Diseases
- Public Health
Context:
- Viral hemorrhagic fevers (VHFs) are a group of diseases caused by several distinct virus families.
- These viruses exhibit a range of clinical symptoms, primarily fever and hemorrhage, with varying severity.
- VHFs are recognized as potential biological weapons due to their transmission routes and severity.
Purpose:
- To outline the characteristics and classification of VHF viruses.
- To discuss transmission routes and potential bioterrorism implications.
- To detail the management strategies for VHF infections, including diagnosis and treatment.
Summary:
- VHFs are caused by filoviridae, arenaviridae, bunyaviridae, and flaviviridae families, presenting with fever and hemorrhage in 5-70% of cases.
- Airborne transmission is common, with exceptions like dengue and Crimean-Congo hemorrhagic fever virus.
- Management, guided by the French Biotox plan, includes isolation, diagnosis, and ribavirin treatment for arenavirus and bunyavirus infections.
Impact:
- Highlights the critical need for preparedness against bioterrorism involving VHFs.
- Emphasizes the importance of rapid diagnosis and targeted treatment with ribavirin for specific VHF types.
- Underscores the limited availability of vaccines for most VHFs, except yellow fever, necessitating robust public health surveillance and response systems.