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Yongjin Qiu
Researcher at Hokkaido University
Publications - 61
Citations - 697
Yongjin Qiu is an academic researcher from Hokkaido University. The author has contributed to research in topics: Tick & Medicine. The author has an hindex of 11, co-authored 47 publications receiving 423 citations. Previous affiliations of Yongjin Qiu include University of Zambia & Rakuno Gakuen University.
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Microbial population analysis of the salivary glands of ticks; a possible strategy for the surveillance of bacterial pathogens.
TL;DR: The microbial populations in tick salivary glands were different between tick species, indicating that host specificities may play an important role in determining the microbial complement.
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Diversity of spotted fever group rickettsiae and their association with host ticks in Japan
May June Thu,Yongjin Qiu,Keita Matsuno,Masahiro Kajihara,Akina Mori-Kajihara,Ryosuke Omori,Naota Monma,Kazuki Chiba,Junji Seto,Mutsuyo Gokuden,Masako Andoh,Hideo Oosako,Ken Katakura,Ayato Takada,Chihiro Sugimoto,Norikazu Isoda,Ryo Nakao +16 more
TL;DR: A nationwide cross-sectional survey on questing ticks in Japan suggested that most of the SFG rickettsiae have a limited host range and are maintained in certain tick species in the natural environment.
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High prevalence of spotted fever group rickettsiae in Amblyomma variegatum from Uganda and their identification using sizes of intergenic spacers
Ryo Nakao,Yongjin Qiu,Manabu Igarashi,Joseph W Magona,Lijia Zhou,Kimihito Ito,Chihiro Sugimoto +6 more
TL;DR: Rickettsia genus-specific real-time PCR detected 136 positives out of 140 samples, giving an overall prevalence of 97.1% and Clinicians in this country should be aware of this pathogen as a cause of non-malarial febrile illness.
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The Unique Phylogenetic Position of a Novel Tick-Borne Phlebovirus Ensures an Ixodid Origin of the Genus Phlebovirus.
Keita Matsuno,Masahiro Kajihara,Ryo Nakao,Naganori Nao,Akina Mori-Kajihara,Mieko Muramatsu,Yongjin Qiu,Shiho Torii,Manabu Igarashi,Nodoka Kasajima,Keita Mizuma,Kentaro Yoshii,Hirofumi Sawa,Chihiro Sugimoto,Ayato Takada,Hideki Ebihara +15 more
TL;DR: The findings suggest that most of the phlebovirus evolution has occurred in hard ticks to generate divergent viruses, which may provide a seminal foundation for understanding the mechanisms underlying the evolution and emergence of pathogenic phleBoviruses, such as Rift Valley fever virus and SFTSV/HRTV.
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Human borreliosis caused by a New World relapsing fever Borrelia-like organism in the old world.
Yongjin Qiu,Ryo Nakao,Bernard M. Hang’ombe,Kozue Sato,Masahiro Kajihara,Sharon Kanchela,Katendi Changula,Yoshiki Eto,Joseph Ndebe,Michihito Sasaki,May June Thu,Ayato Takada,Ayato Takada,Hirohumi Sawa,Chihiro Sugimoto,Chihiro Sugimoto,Hiroki Kawabata +16 more
TL;DR: This is the first study to report on relapsing fever Borrelia in Zambia and suggest the likely natural reservoir hosts of the isolated Borrelian species, which was more closely related to New World relapsed fever borreliae despite being detected in the Afrotropic ecozone.