During the years 2009-2012, faeces of African penguins (Spheniscus demersus L.) from South African rehabilitation centres were examined for helminths. In total, 46 out 555 samples (8.
View Article and Find Full Text PDFTrematode infections affect a diverse range of avian species and the organs that are parasitised are also very varied. The family Eucotylidae contains seven genera of renal flukes that parasitise various birds. In birds, mild to severe lesions have been reported for species of the genus Paratanaisia, which was originally described from columbiform and galliform specimens collected in South America and has been identified in a number of wild avian species.
View Article and Find Full Text PDFDelicate filamentous schistosomatids detected in the intestinal veins of experimentally infected chickens are here described as a new parasite species, Gigantobilharzia melanoidis, and details of its life cycle are given. It is the first complete description of a schistosome species that uses Melanoides tuberculata as an intermediate host. Apharyngeate ocellate brevifurcate cercariae found in 65 out of 950 M.
View Article and Find Full Text PDFIn the last few decades, phylogenetic studies of the family Schistosomatidae based on molecular markers have revealed that members of the genus Orientobilharzia Dutt & Srivastava, 1955 belong within Schistosoma Weinland, 1858. In this study, the original descriptions and redescriptions of Orientobilharzia species and related revisions are reviewed, and it is confirmed that the morphological characters correspond with the results of the molecular studies. The two genera differ only in the number of testes; however, this character varies to a large extent within particular genera of the subfamily Schistosomatinae and cannot be used to justify the separation of Orientobilharzia from Schistosoma.
View Article and Find Full Text PDFBird schistosomes have been in focus as causative agents of cercarial dermatitis of humans in the last years; however, our knowledge of their species spectrum and intermediate host specificity is still insufficient. Our study focused on bird schistosomes developing in planorbid snails that have been less studied so far. From 2001 to 2010, cercariae of bird schistosomes were found in four snail species (Gyraulus albus, Segmentina nitida, Anisus vortex and Planorbis planorbis) from seven localities in the Czech Republic.
View Article and Find Full Text PDFCercarial dermatitis is caused by animal schistosomes in many parts of the world including Iran. Various stages of the parasites have been studied in intermediate and definitive hosts in northern and southwestern Iran; however, no molecular investigation for species identification and classification of these agents has been carried out, so far. In the present study, more than 3,800 aquatic snails were collected from water sources of Khuzestan, southwest Iran.
View Article and Find Full Text PDFSamples of schistosome cercariae from three different snail species (Lymnaea stagnalis, Radix auricularia and Valvata (Tropidina) macrostoma) collected from lakes in Central Finland were analyzed using molecular techniques. Based on sequences of ITS region of rDNA, the parasite isolates from L. stagnalis and R.
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