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タイトル: Babesia ovata: Taxonomy, phylogeny and epidemiology
著者: Sivakumar, Thillaiampalam
Igarashi, Ikuo
Yokoyama, Naoaki
キーワード: Babesia ovata
Cattle
Epidemiology
Phylogeny
Taxonomy
発行日: 15-Oct-2016
出版者: Elsevier
誌名: Veterinary Parasitology
巻: 229
開始ページ: 99
終了ページ: 106
抄録: Babesia ovata, which is transmitted by Haemaphysalis longicornis, is an intraerythrocytic protozoan parasite of cattle. Based on its morphology, B. ovata is classified as a large-type Babesia. The developmental stages of B. ovata have been described both in cattle and the tick vector. In infected adult female ticks, the parasite is transovarially transmitted to the tick eggs. The sexual reproduction of B. ovata has been demonstrated in the tick midgut. The diagnostic tools that are currently available for the specific detection of B. ovata in cattle include microscopy and polymerase chain reaction assays. The development of improved molecular and serological diagnostic tools has been constrained by the limited availability of genetic data. B. ovata has been reported in cattle populations in Japan, Korea, China, Mongolia and Thailand. B. ovata was thought to be a benign parasite; however, infections in immuno compromised or Theileria orientalis-infected animals are clinically significant. Thus, control strategies aimed at minimizing the prevalence of B. ovata are vital. The taxonomy of B. ovata is unclear, and the phylogenetic position has not been well defined. Consequently, non?B. ovata species have sometimes been classified as B. ovata. In this review, we provide an outline of the lifecycle, geographical distribution, and control of B. ovata, and critically discuss the taxonomy and phylogeny of this bovine Babesia. c 2016 Elsevier B.V.
URI: http://ir.obihiro.ac.jp/dspace/handle/10322/4555
DOI: info:doi/10.1016/j.vetpar.2016.10.006
ISSN: 03044017
権利情報: This accepted manuscript is licensed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. <http://creativecommons.org/lisenses/by-nc-nd/4.0/>
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