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A longitudinal study of Babesia and Theileria infections in cattle in Sri Lanka
https://obihiro.repo.nii.ac.jp/records/1184
https://obihiro.repo.nii.ac.jp/records/118458d84ce6-ceea-4ade-8ae7-c0b140e30542
名前 / ファイル | ライセンス | アクション |
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Sivakumar et al., 2016.pdf (654.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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公開日 | 2017-12-01 | |||||||||||||
タイトル | ||||||||||||||
言語 | en | |||||||||||||
タイトル | A longitudinal study of Babesia and Theileria infections in cattle in Sri Lanka | |||||||||||||
言語 | ||||||||||||||
言語 | eng | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Babesia | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Cattle | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Longitudinal study | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Sri Lanka | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Theileria | |||||||||||||
資源タイプ | ||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
資源タイプ | journal article | |||||||||||||
著者 |
Sivakumar, Thillaiampalam
× Sivakumar, Thillaiampalam× Kothalawala, Hemal× Weerasooriya, Gayani× Seekkuge, Susil Priyantha Silva× Puvanendiran, Sumathy× Munkhjargal, Tserendorj× 五十嵐, 郁男
WEKO
58
× 横山, 直明
WEKO
312
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抄録 | ||||||||||||||
内容記述タイプ | Abstract | |||||||||||||
内容記述 | Throughout the world, infections with the Babesia and Theileria parasites often result in economically significant clinical disease in cattle. We conducted a longitudinal survey of Babesia and Theileria infections in cattle from the Polonnaruwa (n?=?75; dry zone) and Nuwara Eliya (n?=?161; wet zone) districts of Sri Lanka. DNA from blood samples collected in June, September, and December 2014 and March 2015 was screened for Babesia bovis, Babesia bigemina, Theileria annulata and Theileria orientalis using specific polymerase chain reactions (PCRs). Additionally, serum samples collected from the animals were screened using enzyme-linked immunosorbent assays (ELISAs) to detect B. bovis- and B. bigemina-specific antibodies. All of the animals surveyed in Polonnaruwa and 150 (93.2%) of the animals surveyed in Nuwara Eliya were PCR-positive for Babesia and/or Theileria at least once during the study period. A greater percentage of the cattle in Polonnaruwa were positive for T. annulata and T. orientalis than B. bovis or B. bigemina at all time points. T. orientalis was the most common infection in Nuwara Eliya. Additionally, more cattle were seropositive for B. bigemina than B. bovis in both districts. Although significant variations were sometimes observed in the rates of animals that were positive for B. bigemina, T. annulata, and T. orientalis at the different sampling time points, the rates of new infections with these parasites (by PCR or ELISA) on second, third, and fourth time points among the parasite-negative samples at the first, second, and third time points, respectively, did not differ between the sampling in either district?suggesting that the parasite species infected cattle at a constant rate in these locations. However, in Polonnaruwa, the rates of new infection with T. annulata were higher than the rates of new infection with T. orientalis. The rates were also higher than those in Nuwara Eliya. In Nuwara Eliya, the rates of new infection with T. orientalis were higher than the rates of new infection with T. annulata. The rates were also higher than those in T. orientalis in Polonnaruwa. These differences might be due to variations in the density and activity of the specific tick vectors within and between the districts. Our findings suggest the need for year-round control measures against bovine Babesia and Theileria infection in Sri Lanka. Further studies to determine the densities of the vector tick species in the different geographical areas of the country are warranted. c 2016 Elsevier B.V. | |||||||||||||
言語 | en | |||||||||||||
書誌情報 |
en : Veterinary Parasitology: Regional Studies and Reports 巻 6, p. 20-27, 発行日 2016 |
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出版者 | ||||||||||||||
言語 | en | |||||||||||||
出版者 | Elsevier | |||||||||||||
ISSN | ||||||||||||||
収録物識別子タイプ | PISSN | |||||||||||||
収録物識別子 | 24059390 | |||||||||||||
書誌レコードID | ||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||
収録物識別子 | AA12798407 | |||||||||||||
DOI | ||||||||||||||
関連タイプ | isVersionOf | |||||||||||||
識別子タイプ | DOI | |||||||||||||
関連識別子 | info:doi/10.1016/j.vprsr.2016.11.009 | |||||||||||||
権利 | ||||||||||||||
言語 | en | |||||||||||||
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/> | |||||||||||||
フォーマット | ||||||||||||||
内容記述タイプ | Other | |||||||||||||
内容記述 | application/pdf | |||||||||||||
著者版フラグ | ||||||||||||||
出版タイプ | AM | |||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
日本十進分類法 | ||||||||||||||
主題Scheme | NDC | |||||||||||||
主題 | 491 |