| first record of human infection with the tapeworm diphyllobothrium nihonkaiense in north america. | the tapeworm diphyllobothrium nihonkaiense (cestoda: diphyllobothriidea), originally described from japan, is reported from a man in north america for the first time. species identification was based on sequences of ribosomal (partial 18s rrna) and mitochondrial (partial cytochrome c oxidase subunit i) genes of proglottids expelled from a czech tourist who ate raw pacific sockeye salmon (oncorhynchus nerka) from british columbia, canada. | 2008 | 18256421 |