Cestode infections in animals: immunological diagnosis and vaccination.

摘要: Cestode infections in animals are important because several species zoonotic, causing cysticercosis and hydatidosis man, of the economic losses incurred due to livestock. Information on immunological diagnosis vaccination against cestode infection is restricted almost exclusively taeniid cestodes which two groups mammalian hosts concerned: intermediate host infected with larval parasite definitive adult tapeworm parasite. Research towards developing serological tests for has been largely unsuccessful. Substantial problems remain, frequent existence multiple different antigenic crossreactivity between these related parasites, low level specific antibody response infection. Problems poor specificity sensitivity traditional have prevented development any practical test ante-mortem A recent new approach Taenia saginata by detecting circulating antigen offers some prospect a diagnostic cattle. The effectiveness arecoline purge detection Echinococcus granulosus dogs reduced widespread availability praziquantel. method E. developed equivalent or superior compared purge. This should provide valuable tool hydatid control campaigns existing past dogs. progress made vaccine prevention T. ovis sheep. An derived from egg identified produced Escherichia coli using recombinant DNA techniques. vaccine, protects sheep challenge ovis, first highly effective defined man animals. Commercial this progress. success achieved augurs well rapid other vaccines caused