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[Rift valley fever and Zinga virus: a pathogenic arbovirus in man and animal new for Madagascar]
Abstract:
Virus Zinga strains have been isolated from several pools of mosquitoes collected in Perinet area, 130 km far from Tananarive, at the Institut Pasteur of Madagascar in 1980. Although this virus is pathogenic for man, it seemed to give only a mild illness and did not appear to constitute a problem of Public Health. But today it is seen in quite a different way; since the WHO Center for Arbovirus Reference and Research of New Haven has shown the serologic identity between virus Zinga and an another arbovirus, Rift Valley Fever virus. This latter is in fact very pathogenic for man and domestic animal, he is responsible of important epizootics characterized by many abortions in pregnancies and death of newborn animals, many infections have occurred in man during these epizootics and the disease is able to give a mortal haemorragic syndrome. Until now, no particular aggressivity has been shown by virus Zinga in Madagascar, but it remains a real potential danger for man and for domestic animals.
Insights
Virus Zinga, initially thought mild, is now identified as serologically identical to Rift Valley Fever virus. This poses a significant potential public health risk to humans and domestic animals due to the latter
Area of Science:
- Virology
- Arbovirology
- Epidemiology
Context:
- Virus Zinga strains were isolated from mosquitoes in Madagascar in 1980.
- Initially, Zinga virus was considered to cause only mild illness in humans.
- The World Health Organization (WHO) Arbovirus Reference and Research Center identified Zinga virus.
Purpose:
- To investigate the public health significance of Zinga virus.
- To determine the serological relationship between Zinga virus and other known arboviruses.
- To assess the potential risk posed by Zinga virus to human and animal populations.
Summary:
- Zinga virus, isolated in Madagascar, has been shown to be serologically identical to Rift Valley Fever virus.
- Rift Valley Fever virus is highly pathogenic, causing severe illness, abortions in domestic animals, and potentially fatal hemorrhagic syndrome in humans.
- Despite no observed high pathogenicity of Zinga virus in Madagascar to date, its identity with RVFV represents a significant potential danger.
Impact:
- Re-evaluation of Zinga virus's public health importance in Madagascar.
- Highlights the potential for severe epizootics and human infections.
- Underscores the need for continued surveillance and preparedness for arboviral diseases.