ArticleParasitology research2020
Molecular detection of apicomplexan protozoa in Hokkaido brown bears (Ursus arctos yesoensis) and Japanese black bears (Ursus thibetanus japonicus).
Article in Parasitology research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 14 citations in OpenAlex.
- Patterns of tick infestation and tick-borne pathogen prevalence in sika deer and brown bears in Hokkaido, Japan.Experimental & applied acarology · 2025Article
- Hepatozoon infections in domestic and wild Carnivora: etiology, prevalence, clinical disease, diagnosis and treatment, and redescription of Hepatozoon silvestris, H. martis, and H. ursi.Parasites & vectors · 2025Review
- A review on ecological and physiological studies in bears from a One Health perspective.The Journal of veterinary medical science · 2025Review
- Cytauxzoon paradoxurus n. sp., a novel Cytauxzoon species identified in common palm civets in Singapore.Parasites & vectors · 2025Article
- Diversity ofPathogens (Basel, Switzerland) · 2025Article
- A novel genotype of Babesia microti-like group in Ixodes montoyanus ticks parasitizing the Andean bear (Tremarctos ornatus) in Ecuador.Experimental & applied acarology · 2025Article
- Description and molecular characterisation of Babesia ailuropodae n. sp., a new piroplasmid species infecting giant pandas.Parasites & vectors · 2024Article
- Nucleic Acid Prevalence of ZoonoticTropical medicine and infectious disease · 2023Review
- The Piroplasmida Babesia, Cytauxzoon, and Theileria in farm and companion animals: species compilation, molecular phylogeny, and evolutionary insights.Parasitology research · 2022Review
- Molecular investigation and clinical management of Hepatozoon Canis infection in an Indian jackal - a case report.BMC veterinary research · 2022Article
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Authors and funding
12 authors at 6 institutions in 2 countries.
Funding
Abstract
Many tick-borne pathogens (TBPs) are present in wildlife. The objective of this study is to reveal the role of wild bears in maintaining TBPs. A total of 49 brown bears (Ursus arctos yesoensis) from Hokkaido, and 18 Japanese black bears (Ursus thibetanus japonicus) from Tochigi, and 66 Japanese black bears from Nagano were examined by two molecular methods, reverse line blot (RLB) hybridization, and nested PCR. A total of 5 TBPs (Hepatozoon ursi, Babesia sp. UR2-like group, Cytauxzoon sp. UR1, Babesia sp. UR1, and Babesia microti) were detected from bear blood DNA samples. B. microti was detected from blood DNA samples of Japanese black bear for the first time, with the prevalence of 6.0% (5/84). Out of detected pathogens, H. ursi, Babesia sp. UR2-like pathogens, and Cytauxzoon sp. UR1 were considered as three of the most prevalent TBPs in bears. The prevalence of H. ursi were significantly higher in Japanese black bear (0% vs 96.4%) while that of Babesia sp. UR2-like group was higher in Hokkaido brown bears (89.8% vs 40.5%). The prevalence of Babesia sp. UR1 were significantly higher in Japanese black bears from Tochigi (44.4%), comparing with those from Nagano (18.2%). The prevalence of the detected TBPs were significantly higher in adult bears, comparing with those in younger bears. The present study suggests that Japanese bear species contribute in the transmission of several TBPs in Japan. The expanding distribution of bears might cause the accidental transmission of TBPs to humans and domestic animals.
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