{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T10:11:04Z","timestamp":1775643064673,"version":"3.50.1"},"reference-count":22,"publisher":"Cambridge University Press (CUP)","issue":"4","license":[{"start":{"date-parts":[[2010,3,25]],"date-time":"2010-03-25T00:00:00Z","timestamp":1269475200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2010,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We investigated the risk of diphyllobothriasis from ingestion of wild Pacific salmon in Japan by surveying <jats:italic>Diphyllobothrium<\/jats:italic> plerocercoids in 182 salmon samples obtained from Japan. The plerocercoids were not detected in chum salmon (<jats:italic>Oncorhynchus keta<\/jats:italic>) (0\/26), called <jats:italic>Akizake<\/jats:italic> in Japan, caught between September and November. However, the detection rate of plerocercoids in chum salmon, called <jats:italic>Tokishirazu<\/jats:italic> in Japan, caught between early April and June, was 51.1% (24\/47) with an average of two plerocercoid larvae per fish. The detection rates of cherry salmon (<jats:italic>Oncorhynchus masou<\/jats:italic>) and pink salmon (<jats:italic>Oncorhynchus gorbuscha<\/jats:italic>) were 12.2% (10\/82) and 18.5% (5\/27), respectively, and the average number of plerocercoids per fish was 0.45 (37 larvae\/82 fishes) and 0.22 larvae (6 larvae\/27 fishes), respectively. Plerocercoids isolated from <jats:italic>O. keta<\/jats:italic> and <jats:italic>O. masou<\/jats:italic> were identified as <jats:italic>Diphyllobothrium nihonkaiense<\/jats:italic> on the basis of molecular analysis of the <jats:italic>cox1<\/jats:italic> and <jats:italic>nad3<\/jats:italic> genes. Moreover, four tapeworms (three from <jats:italic>O. keta<\/jats:italic> and one from <jats:italic>O. masou<\/jats:italic>) were obtained by infecting golden hamsters with plerocercoids. The morphological features of these tapeworms were similar to those of <jats:italic>D. nihonkaiense<\/jats:italic> isolated from humans. Therefore, we think that <jats:italic>O. keta<\/jats:italic> and not <jats:italic>O. masou<\/jats:italic> is the most important source of plerocercoid infections in Japan.<\/jats:p>","DOI":"10.1017\/s0022149x10000155","type":"journal-article","created":{"date-parts":[[2010,3,25]],"date-time":"2010-03-25T10:57:58Z","timestamp":1269514678000},"page":"434-440","source":"Crossref","is-referenced-by-count":12,"title":["Detection and identification of <i>Diphyllobothrium nihonkaiense<\/i> plerocercoids from wild Pacific salmon (<i>Oncorhynchus<\/i> spp.) in Japan"],"prefix":"10.1017","volume":"84","author":[{"given":"J.","family":"Suzuki","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Murata","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Sadamasu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Araki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2010,3,25]]},"reference":[{"key":"S0022149X10000155_ref22","doi-asserted-by":"publisher","DOI":"10.1016\/S1383-5769(99)00011-2"},{"key":"S0022149X10000155_ref21","doi-asserted-by":"publisher","DOI":"10.1016\/j.parint.2005.09.004"},{"key":"S0022149X10000155_ref20","first-page":"29","article-title":"Diphyllobothrium nihonkaiense sp. nov. 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