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Detection of Tick-Borne Bacterial and Protozoan Pathogens in Ticks from the Zambia-Angola Border

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Title: Detection of Tick-Borne Bacterial and Protozoan Pathogens in Ticks from the Zambia-Angola Border
Authors: Qiu, Yongjin Browse this author
Simuunza, Martin Browse this author
Kajihara, Masahiro Browse this author
Ndebe, Joseph Browse this author
Saasa, Ngonda Browse this author
Kapila, Penjani Browse this author
Furumoto, Hayato Browse this author
Lau, Alice C. C. Browse this author
Nakao, Ryo Browse this author
Takada, Ayato Browse this author
Sawa, Hirofumi Browse this author →KAKEN DB
Keywords: Babesia caballi
Candidatus Midichloria mitochondrii
Hepatozoon canis
Theileria velifera
Zambia-Angola border
Issue Date: May-2022
Publisher: MDPI
Journal Title: Pathogens
Volume: 11
Issue: 5
Start Page: 566
Publisher DOI: 10.3390/pathogens11050566
Abstract: Tick-borne diseases (TBDs), including emerging and re-emerging zoonoses, are of public health importance worldwide; however, TBDs tend to be overlooked, especially in countries with fewer resources, such as Zambia and Angola. Here, we investigated Rickettsia, Anaplasmataceae, and Apicomplexan pathogens in 59 and 96 adult ticks collected from dogs and cattle, respectively, in Shangombo, a town at the Zambia-Angola border. We detected Richkettsia africae and Rickettsia aeschilimannii in 15.6% of Amblyomma variegatum and 41.7% of Hyalomma truncatum ticks, respectively. Ehrlichia minasensis was detected in 18.8% of H. truncatum, and Candidatus Midichloria mitochondrii was determined in Hyalomma marginatum. We also detected Babesia caballi and Theileria velifera in A. variegatum ticks with a 4.4% and 6.7% prevalence, respectively. In addition, Hepatozoon canis was detected in 6.5% of Rhipicephalus lunulatus and 4.3% of Rhipicephalus sanguineus. Coinfection of R. aeshilimannii and E. minasensis were observed in 4.2% of H. truncatum. This is the first report of Ca. M. mitochondrii and E. minasensis, and the second report of B. caballi, in the country. Rickettsia africae and R. aeschlimannii are pathogenic to humans, and E. minasensis, B. caballi, T. velifera, and H. canis are pathogenic to animals. Therefore, individuals, clinicians, veterinarians, and pet owners should be aware of the distribution of these pathogens in the area.
Type: article
Appears in Collections:人獣共通感染症国際共同研究所 (International Institute for Zoonosis Control) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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