[KAP study (knowledge-attitude-practice) on seafood poisoning on the southwest coast of Madagascar].

In June and July 1996, a knowledge, attitude and practice survey concerning seafood poisonings was conducted in Tuléar Province, 41 villages spread along 300 km of cost, with some 34,000 inhabitants, were included in the survey. 84 seafood poisonings after fish, shark and turtle meals occurred during the period 1931 to 1995; 14 of them were responsible of deaths. The family of toxic fishes are Clupeidae, Tetraodontidae, Scaridae and Siganidae. Sphyrna lewini is the shark species the most often responsible for poisonings. Three turtle species are involved in poisonings: Eretmochelys imbricata, Chelonia mydas and Dermochelys coriacea. Clinical patterns were related to marine toxins. Although the communities were aware of the risks, there was no change in seafood meal practice. Preventive measures are not very often used. Practical techniques to detect toxins, although very simple, are not systematically carried out. For a better understanding of the seafood poisoning risk in Madagascar, a retrospective survey in the villages located in coastal areas all around Madagascar was to be carried out in 1997. An eco-toxicological survey will likewise probably be organised in an Indian Ocean regional approach.