Origin and prevention of airport malaria in France

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Abstract:

Summary Since 1969, 63 cases of airport malaria have been reported in Western Europe, 24 of which occurred in France. Most were due to Plasmodium falciparum. In 1994, 7 cases occurred in and around Roissy Charles de Gaulle airport (CDG), showing 4 types of contamination: among employees working on airstrips or opening containers, among residents living near the airport, among people living at some distance from the airport after a secondary transport of vectors, and by vectors transported in luggage. In-flight or stop-over infection is not considered as airport malaria. The infective anophelines originated from airports where malaria transmission occurs, mostly in subsaharan Africa. A tentative list is given taking into account aerial traffic with France. Surveys in the airports of Dakar (Senegal), Cotonou (Benin), Abidjan (Cote d'Ivoire) and Yaoundé (Cameroun) found potential vectors in all of these from July to September. After 1994, the Contrôle Sanitaire aux Frontières (CSF) in charge at CDG concentrated its efforts on the flights at risk, as well as information and sensitization of airline companies, which resulted in 73% and 87% of the flights at risk being properly disinsected in 1995 and 1996. Despite pyrethroid resistance in Anopheles gambiae s.s. in West Africa, the efficacy of aircraft spraying with permethrin aerosols is still acceptable. However, surveillance of resistance should be improved and search for nonpyrethroid insecticides suitable for aircraft strongly encouraged.

Keywords: Airport malaria; Plasmodium falciparum; pyrethroids; sub-Saharan Africa

Document Type: Research Article

Affiliations: 1: ORSTOM-LIN, Montpellier, France 2: DDASS Seine St Denis, Contrôle Sanitaire aux Frontières, France 3: Centre Hospitalier Robert Balanger, Aulnay-sous-Bois, France 4: Centre de Recherches Entomologiques, Cotonou, Benin 5: Laboratoire de Paludologie, Université de Dakar, Senegal 6: Institut National d'Hygiène Publique, Abidjan, Côte d'Ivoire 7: OCEAC Yaoundé Laboratoire de Lutte Antivectorielle, Cameroun 8: ORSTOM, Paris, France

Publication date: September 1, 1998

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