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2 results on '"Hannoun C"'

1. [Dengue at Reunion: isolation of a strain at the Pasteur Institute of Madagascar].

Author

Coulanges P, Clercy Y, Jousset FX, Rodhain F, and Hannoun C

Subjects
Dengue epidemiology, Disease Outbreaks, Madagascar, Dengue microbiology, Dengue Virus isolation & purification
Abstract

During the dengue outbreak which occurred in Reunion Island, one dengue type 2 strain was isolated at Institute Pasteur in Madagascar.

Published
1979

2. Arboviruses and lemurs in Madagascar: experimental infection of Lemur fulvus with yellow fever and West Nile viruses.

Author

Rodhain F, Petter JJ, Albignac R, Coulanges P, and Hannoun C

Subjects
Aedes microbiology, Animals, Antibodies, Viral analysis, Culex microbiology, Culicidae microbiology, Insect Vectors microbiology, Madagascar, Mice, West Nile Fever immunology, West Nile Fever transmission, West Nile virus immunology, Yellow Fever immunology, Yellow Fever transmission, Yellow fever virus immunology, Lemur microbiology, Lemuridae microbiology, Togaviridae Infections microbiology, West Nile Fever microbiology, Yellow Fever microbiology
Abstract

In previous serological surveys of lemurs in Madagascar, antibodies against flaviviruses were frequently detected. To examine the epidemiological role of Lemur fulvus, experimental infections with yellow fever (YF) virus and West Nile (WN) virus were performed. YF and WN infections were clinically unapparent. A 3 to 4-day-long viremia, with moderate levels was observed with YF virus. WN virus, especially the strain isolated in Madagascar, provoked a 4 to 6-day-long viremia sufficient to infect Aedes aegypti. In all experiments, the antibody response was studied during the following weeks by 3 methods. The results led to the conclusion that Malagasy lemurs could act as amplifying hosts for WN virus present in Madagascar, and as hosts for YF virus if it were introduced on the island. The epidemiological role of these primates is discussed according to their ecology and their contact with potential mosquito vectors in forest areas of Madagascar.

Published
1985
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