Epidemiological survey of Neospora caninum infection in dogs from Romania |
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Authors: | Gavrea R Mircean V Pastiu A Cozma V |
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Institution: | Division of Parasitology, Indian Veterinary Research Institute, Izatnagar 243122, India. |
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Abstract: | Native cathepsin-L cysteine proteinase (28 kDa) was purified from the excretory secretory products of Fasciola gigantica and was used for sero-diagnosis of F. gigantica infection in buffaloes by Dot-enzyme-linked immunosorbent assay (Dot-ELISA). The test detected F. gigantica field infection in these animals with a sensitivity of ~ 90%. No specific IgG antibody binding was displayed by sera obtained from 76 buffaloes considered to be Fasciola and other parasite-free by microscopic examination of faeces and necropsy examination of liver, rumen and intestine. Additionally, sera from 156 Fasciola-free buffaloes, yet infected with Gigantocotyle explanatum, Paramphistomum epiclitum, Gastrothylax spp., Strongyloides papillosus and hydatid cyst were all negative, indicating that F. gigantica cathepsin-L cysteine proteinase does not cross-react with these helminth parasites in natural infection of the host. The data indicated that cathepsin-L cysteine proteinase based Dot-ELISA reached ~ 90% sensitivity and 100% specificity with relation to above parasites in the detection of bubaline fasciolosis. The present Dot-ELISA diagnostic assay is relevant to the field diagnosis of F. gigantica infection in buffaloes. |
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