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n3:394096

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schema:CreativeWork bibo:Document

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Gérard <i>et al.</i> (2020)

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schema:datePublished

2020-01-01

dct:title

Gérard <i>et al.</i> (2020)

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_:vb70014048

dct:abstract

The edible land snail Cornu aspersum, native to the Mediterranean coastlines of North Africa, is widely distributed on most continents and often invasive in areas where introduction is recent. This species could contribute to the geographic spread of parasites as demonstrated for Brachylaima spp. These cosmopolitan trematodes may represent a threat to human health, like in Australia where Brachylaima cribbi infects humans. In this study, we demonstrate for the first time the occurrence of Brachylaima spp. in two French populations of C. aspersum, Thorigne-Fouillard (Ille-et-Vilaine), and Arcais (Deux-Sevres), with an overall prevalence of 10.4% (Thorigne-Fouillard) and 73.3% (Arcais), respectively and a metacercarial intensity on average three times higher in Thorigne-Fouillard (37) than in Arcais (11). Cornu aspersum may act as a first and second intermediate host, as demonstrated in Arcais. The morphometrics of metacercariae, particularly the great body length about 2 mm, discriminate our Brachylaima species from those already described in C. aspersum (B. cribbi in Australia, and B. aspersae, B. llobregatensis and B. mascomai in Europe). Molecular analysis, based on 28S and COI, suggests the occurrence of two species in our study, one of which is probably Brachylaima mesostoma, an intestinal parasite of passeriform birds described in Central Europe. We underline the need for further research to identify species of Brachylaima in France and measure the health hazard of consuming field-collected snails.

bibo:abstract

The edible land snail Cornu aspersum, native to the Mediterranean coastlines of North Africa, is widely distributed on most continents and often invasive in areas where introduction is recent. This species could contribute to the geographic spread of parasites as demonstrated for Brachylaima spp. These cosmopolitan trematodes may represent a threat to human health, like in Australia where Brachylaima cribbi infects humans. In this study, we demonstrate for the first time the occurrence of Brachylaima spp. in two French populations of C. aspersum, Thorigne-Fouillard (Ille-et-Vilaine), and Arcais (Deux-Sevres), with an overall prevalence of 10.4% (Thorigne-Fouillard) and 73.3% (Arcais), respectively and a metacercarial intensity on average three times higher in Thorigne-Fouillard (37) than in Arcais (11). Cornu aspersum may act as a first and second intermediate host, as demonstrated in Arcais. The morphometrics of metacercariae, particularly the great body length about 2 mm, discriminate our Brachylaima species from those already described in C. aspersum (B. cribbi in Australia, and B. aspersae, B. llobregatensis and B. mascomai in Europe). Molecular analysis, based on 28S and COI, suggests the occurrence of two species in our study, one of which is probably Brachylaima mesostoma, an intestinal parasite of passeriform birds described in Central Europe. We underline the need for further research to identify species of Brachylaima in France and measure the health hazard of consuming field-collected snails.

dct:issued

2020-01-01

dct:bibliographicCitation

Gérard, C., Ansart, A., Decanter, N., Martin, M. &amp; Dahirel, M. 2020. <em>Brachylaima </em>spp. (Trematoda) parasitizing <em>Cornu aspersum</em> (Gastropoda) in France with potential risk of human consumption <em>Parasite</em>, 27: 15.

bibo:doi

10.1051/parasite/2020012

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n5:pdf

Subject Item

_:vb70014048

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n9:P356

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10.1051/parasite/2020012