To investigate the potential pathogenicity of Baylisascaris spp. nematodes, mice were experimentally infected with Baylisascaris transfuga eggs, which had been cultured in 0.1 N sulphuric acid, for a period in excess of 1 year. Infectivity for mice appeared after 2 weeks in cultures (2.8%), peaked after 4 weeks (37.4%) and then waned over the next 18 months. The implications of B. transfuga as a possible agent of visceral larva migrans in animals and humans was demonstrated.
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http://dx.doi.org/10.1016/0304-4017(94)90166-x | DOI Listing |
Parasitol Int
February 2025
Department of Parasitology, Parasite Research Center and School of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea; Biomedical Research Institute, Chungbuk National University Hospital, Cheongju 28644, Republic of Korea. Electronic address:
Bears harbor various endoparasites that pose risks to humans and other animals. However, information on parasitic infections in Asiatic black bears in South Korea (Korea) is limited, and potential hazards still exist because of the close contact between bears and humans on bile farms. The present study was conducted to assess the gastrointestinal parasite infection status in captive Asiatic black bears (Ursus thibetanus) at bile farms in Korea.
View Article and Find Full Text PDFFront Vet Sci
September 2024
Laboratory of Biodiversity and Genetic Resources, National Center for Biotechnology, Astana, Kazakhstan.
Introduction: The presence of gastrointestinal nematodes, including zoonotic ascarids, in wild canids, felids and mustelids as definitive hosts in Central Asian countries has been documented in many studies based on traditional morphological methods. In contrast, relevant data for the badger are scarce. The aim of this study was the molecular identification of ascarid nematodes from five wild carnivore species in different regions of Kazakhstan.
View Article and Find Full Text PDFJ Vet Med Sci
September 2024
Laboratory of Veterinary Parasitology, School of Veterinary Medicine, Kitasato University, Aomori, Japan.
The bear roundworm Baylisascaris transfuga has been identified in several host bears (Ursinae). However, limited genetic information is available on the bear roundworm in Japanese populations. This study evaluated the genetic composition of bear roundworms isolated from wild Japanese black bears indigenous to Lake Towada, Japan.
View Article and Find Full Text PDFAnimals (Basel)
January 2024
College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China.
Syst Parasitol
June 2023
Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, Hebei, People's Republic of China.
Baylisascaris transfuga (Rudolphi, 1819) is a common parasitic nematode in the digestive tract of various species of bears worldwide, with great veterinary significance. However, our present knowledge on the morphology of B. transfuga remains insufficient.
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