[Sylvatic yellow fever in Africa recent advances and present approach (author's transl)]. / La fièvre jaune selvatique en Afrique: donnees récentes et conceptions actuelles.
Med Trop (Mars)
; 41(1): 31-43, 1981.
Article
em Fr
| MEDLINE
| ID: mdl-6116147
ABSTRACT
Recent works carried out in west and central Africa resulted in numerous yellow fever virus isolations from sylvatic mosquitoes in the forest-savanna transitional zone. This virus was also obtained from monkeys, whereas studies on sequence and duration of the observed epizootics permitted a previsional approach of the yellow fever mechanisms in the same belt, the epidemiological importance of which was stressed ("emergence zone"). In the same course of research and publications, the prevalent part of the involved mosquitoes as virus-reservoirs was constantly emphasized ("reservoir-vector"). Recent investigations on transovarial transmission and yellow fever isolations from male mosquitoes caught in the field, provide decisive support to such a conception. It can explain that epizootics may be locally observed several years in succession, despite the fact that yellow fever virus circulation seems to be fundamentally of a dynamic character. Yellow fever virus was recently obtained from ticks and tick-eggs.
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Base de dados:
MEDLINE
Assunto principal:
Vetores Artrópodes
/
Febre Amarela
/
Vírus da Febre Amarela
/
Culicidae
Limite:
Animals
/
Female
/
Humans
/
Male
País como assunto:
Africa
Idioma:
Fr
Ano de publicação:
1981
Tipo de documento:
Article