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Hiroshi Yamasaki - One of the best experts on this subject based on the ideXlab platform.

  • Epidemiology of Diphyllobothrium nihonkaiense Diphyllobothriasis, Japan, 2001–2016
    Emerging Infectious Diseases, 2018
    Co-Authors: Hiroshi Ikuno, Shinkichi Akao, Hiroshi Yamasaki
    Abstract:

    : We report 958 cases of cestodiasis occurring in Japan during 2001-2016. The predominant pathogen was Diphyllobothrium nihonkaiense tapeworm (n = 825), which caused 86.1% of all cases. The other cestode species involved were Taenia spp. (10.3%), Diplogonoporus balaenopterae (3.3%), and Spirometra spp. (0.2%). We estimated D. nihonkaiense Diphyllobothriasis incidence as 52 cases/year. We observed a predominance of cases during March-July, coinciding with the cherry salmon and immature chum salmon fishing season, but cases were present year-round, suggesting that other fish could be involved in transmission to humans. Because of increased salmon trade, increased tourism in Japan, and lack of awareness of the risks associated with eating raw fish, cases of D. nihonkaiense Diphyllobothriasis are expected to rise. Therefore, information regarding these concerning parasitic infections and warnings of the potential risks associated with these infections must be disseminated to consumers, food producers, restaurant owners, physicians, and travelers.

  • epidemiology of diphyllobothrium nihonkaiense Diphyllobothriasis japan 2001 2016
    Emerging Infectious Diseases, 2018
    Co-Authors: Hiroshi Ikuno, Shinkichi Akao, Hiroshi Yamasaki
    Abstract:

    We report 958 cases of cestodiasis occurring in Japan during 2001-2016. The predominant pathogen was Diphyllobothrium nihonkaiense tapeworm (n = 825), which caused 86.1% of all cases. The other cestode species involved were Taenia spp. (10.3%), Diplogonoporus balaenopterae (3.3%), and Spirometra spp. (0.2%). We estimated D. nihonkaiense Diphyllobothriasis incidence as 52 cases/year. We observed a predominance of cases during March-July, coinciding with the cherry salmon and immature chum salmon fishing season, but cases were present year-round, suggesting that other fish could be involved in transmission to humans. Because of increased salmon trade, increased tourism in Japan, and lack of awareness of the risks associated with eating raw fish, cases of D. nihonkaiense Diphyllobothriasis are expected to rise. Therefore, information regarding these concerning parasitic infections and warnings of the potential risks associated with these infections must be disseminated to consumers, food producers, restaurant owners, physicians, and travelers.

  • Molecular identification of the Diphyllobothrium species causing Diphyllobothriasis in Chilean patients
    Parasitology Research, 2010
    Co-Authors: Ruben Mercado, Hiroshi Yamasaki, Motoe Kato, Victor Muñoz, Hernan Sagua, Patricio Torres, Douglas Castillo
    Abstract:

    Diphyllobothriasis caused by the infection of adult Diphyllobothrium tapeworms sporadically occurs in Chile. The occurrence of the disease is closely linked to the consumption of raw or undercooked freshwater and marine fishes. Diagnosis of Diphyllobothriasis has been based on laboratory examinations of the morphological characteristics of proglottids and eggs passed in the feces. Although determination of the parasite to the species level is possible through histologic examination of proglottid specimens, the parasites of patients who only discharge eggs cannot be diagnosed to the species level. Determining the species responsible for the infection of humans and other animals in affected areas is an important component of understanding the epidemiologic and enzootic characteristics of any infectious disease. We therefore compared the classification results obtained using a molecular approach with those obtained from morphological and histopathological examination of proglottids or eggs from five Chilean individuals with Diphyllobothriasis. DNA analysis confirmed that the causative Diphyllobothrium species in Chile were first identified as Diphyllobothrium latum and Diphyllobothrium pacificum at least. Furthermore, mitochondrial cytochrome c oxidase subunit 1 gene analysis also supported the hypothesis that D . latum from Chile originated from Europe.

  • A case of Diphyllobothrium nihonkaiense infection possibly linked to salmon consumption in New Zealand
    Parasitology Research, 2009
    Co-Authors: Hiroshi Yamasaki, Toshiaki Kuramochi
    Abstract:

    Global increases in salmon consumption and changes in fish-eating habits have meant that Diphyllobothrium infections now occur in regions where they were previously absent. In the present paper, a case of Diphyllobothriasis through the likely ingestion of raw salmon in New Zealand in a Japanese patient is reported. The causative tapeworm species was identified as Diphyllobothrium nihonkaiense based on mitochondrial DNA analysis of proglottid expelled from the patient.

Toshiaki Kuramochi - One of the best experts on this subject based on the ideXlab platform.

Douglas Castillo - One of the best experts on this subject based on the ideXlab platform.

  • Molecular identification of the Diphyllobothrium species causing Diphyllobothriasis in Chilean patients
    Parasitology Research, 2010
    Co-Authors: Ruben Mercado, Hiroshi Yamasaki, Motoe Kato, Victor Muñoz, Hernan Sagua, Patricio Torres, Douglas Castillo
    Abstract:

    Diphyllobothriasis caused by the infection of adult Diphyllobothrium tapeworms sporadically occurs in Chile. The occurrence of the disease is closely linked to the consumption of raw or undercooked freshwater and marine fishes. Diagnosis of Diphyllobothriasis has been based on laboratory examinations of the morphological characteristics of proglottids and eggs passed in the feces. Although determination of the parasite to the species level is possible through histologic examination of proglottid specimens, the parasites of patients who only discharge eggs cannot be diagnosed to the species level. Determining the species responsible for the infection of humans and other animals in affected areas is an important component of understanding the epidemiologic and enzootic characteristics of any infectious disease. We therefore compared the classification results obtained using a molecular approach with those obtained from morphological and histopathological examination of proglottids or eggs from five Chilean individuals with Diphyllobothriasis. DNA analysis confirmed that the causative Diphyllobothrium species in Chile were first identified as Diphyllobothrium latum and Diphyllobothrium pacificum at least. Furthermore, mitochondrial cytochrome c oxidase subunit 1 gene analysis also supported the hypothesis that D . latum from Chile originated from Europe.

Mauricio Llaguno - One of the best experts on this subject based on the ideXlab platform.

Cleudson Castro - One of the best experts on this subject based on the ideXlab platform.

  • Diphyllobothrium latum infection in a non-endemic country: case report
    Revista da Sociedade Brasileira de Medicina Tropical, 2008
    Co-Authors: Mauricio Llaguno, Juan José Cortez-escalante, Jitra Waikagul, Ana Carolina Guimarães Faleiros, Francisco Das Chagas, Cleudson Castro
    Abstract:

    Diphyllobothriasis, which is rarely described in Brazil, was reported initially as a travelers disease and as an accidental infection in individuals who ate raw freshwater fish. This report aims to present the case of a 20-year-old patient with confirmed Diphyllobothrium latum infection.

  • Diphyllobothrium latum infection in a non-endemic country: case report Infecção pelo Diphyllobothrium latum em país não endêmico: relato de caso
    Sociedade Brasileira de Medicina Tropical (SBMT), 2008
    Co-Authors: Mauricio Llaguno, Juan José Cortez-escalante, Jitra Waikagul, Ana Carolina Guimarães Faleiros, Francisco Das Chagas, Cleudson Castro
    Abstract:

    Diphyllobothriasis, which is rarely described in Brazil, was reported initially as a travelers’ disease and as an accidental infection in individuals who ate raw freshwater fish. This report aims to present the case of a 20-year-old patient with confirmed Diphyllobothrium latum infection.A difilobotríase, raramente descrita no Brasil, foi referida inicialmente como doença de viajantes e como infecção acidental em indivíduos que se alimentam com peixe cru de água doce. Este relato objetiva apresentar o caso de uma paciente de 20 anos com infecção confirmada pelo Diphyllobothrium latum