NDLI: Molecular diversity of avian schistosomes in Danish freshwater snails

Content Provider	Springer Nature Link
Author	Christiansen, Anne Ø. Olsen, Annette Buchmann, Kurt Kania, Per W. Nejsum, Peter Vennervald, Birgitte J.
Copyright Year	2015
Abstract	Avian schistosomes are widespread parasites of snails and waterfowl and may cause cercarial dermatitis (swimmer’s itch) in humans, a disease that is frequently reported in European countries. These parasites are known to occur in Denmark, but here, we applied a new approach using molecular tools to identify the parasites at species level. In order to do that, 499 pulmonate freshwater snails (Radix sp., Lymnaea stagnalis, Stagnicola sp. and Planorbarius corneus) were sampled from 12 lakes, ponds, and marshes in the greater Copenhagen area. Avian schistosome cercariae were identified by microscopy and subjected to molecular investigation by sequencing and phylogenetic analysis of the 5.8S and ITS2 ribosomal DNA for species identification. Additionally, snail hosts belonging to the genus Radix were identified by sequencing and phylogenetic analysis of partial ITS2 ribosomal DNA. Three out of 499 snails shed different species of Trichobilharzia cercariae: Trichobilharzia szidati was isolated from L. stagnalis, Trichobilharzia franki from Radix auricularia and Trichobilharzia regenti from Radix peregra. In the light of the public health risk represented by bird schistosomes, these findings are of concern and, particularly, the presence of the potentially neuro-pathogenic species, T. regenti, in Danish freshwaters calls for attention.
Starting Page	1027
Ending Page	1037
Page Count	11
File Format	PDF
ISSN	09320113
Journal	Parasitology Research
Volume Number	115
Issue Number	3
e-ISSN	14321955
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-11-17
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Avian schistosomes Trichobilharzia Cercarial dermatitis Denmark ITS rDNA Parasite-host relationship Medical Microbiology Microbiology Immunology
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Veterinary Parasitology Insect Science

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