Radix natalensis (Gastropoda: Lymnaeidae), a potential intermediate host of Fasciola hepatica in Egypt.

Y. Dar; Félicité Djuikwo-Teukeng; Philippe Vignoles; Gilles Dreyfuss; Daniel Rondelaud

Radix natalensis (Gastropoda: Lymnaeidae), a potential intermediate host of Fasciola hepatica in Egypt.

Y. Dar Félicité Djuikwo-Teukeng Philippe Vignoles ^{1, 2} Gilles Dreyfuss ^{1, 2, *} Daniel Rondelaud ²

* Auteur correspondant

1 NETEC - Neuroépidémiologie Tropicale et Comparée

Abstract : Experimental infections of Egyptian Radix natalensis with French miracidia of Fasciola hepatica were carried out to determine if this snail might act as an intermediate host in the life cycle of this digenean in Egypt. Single exposures of R. natalensis to miracidia (2/snail) and two successive exposures (a total of 4 miracidia/ snail) were performed using lymnaeids measuring 1 to 6 mm in height. Live larval forms of F. hepatica were noted in single- and double-exposed snails. In double exposures, a significant increase of snail survival on day 28 post-exposure (at 24 degrees C) and an decrease in prevalence were noted when the height of snails at exposure was increasing. Cercariae of F. hepatica were shed by these snails (90.7/snail) during a mean patent period of 24.3 days. All snails have released these cercariae during 2-13 waves of shedding. According to these results, R. natalensis can be considered a potential intermediate host of F. hepatica in Egypt.

Type de document :

Article dans une revue

Domaine :

Sciences du Vivant [q-bio] / Santé publique et épidémiologie

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https://hal-unilim.archives-ouvertes.fr/hal-00934744
Contributeur : Elisabeth Grelier <>
Soumis le : mercredi 22 janvier 2014 - 15:34:19
Dernière modification le : lundi 12 mars 2018 - 10:26:02

Radix natalensis (Gastropoda: Lymnaeidae), a potential intermediate host of Fasciola hepatica in Egypt.

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Radix natalensis (Gastropoda: Lymnaeidae), a potential intermediate host of Fasciola hepatica in Egypt.

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