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Eimeria species in cattle with diarrhoea in the Republic of Korea regarding age, season and nature of diarrhoea
  1. Seung-Hun Lee1,2,
  2. Ha-Young Kim3,
  3. Haeseung Lee1,
  4. Jong Wan Kim3,
  5. Yu-Ran Lee3,
  6. Myeong Ju Chae3,
  7. Sang-Ik Oh3,
  8. Jong Ho Kim3,
  9. Man Hee Rhee1,
  10. Oh-Deog Kwon1,
  11. Youn-Kyoung Goo4,
  12. Tae-Hwan Kim1,
  13. Paul John L Geraldino5 and
  14. Dongmi Kwak1
  1. 1College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
  2. 2National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
  3. 3Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
  4. 4Department of Parasitology and Tropical Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
  5. 5Department of Biology, School of Arts and Sciences, University of San Carlos, Cebu, Philippines
  1. E-mail for correspondence; dmkwak{at}


This study evaluated the prevalence of Eimeria species, particularly E bovis, E zuernii and E auburnensis that are pathogenic to cattle, in faecal samples collected from cattle with diarrhoea reared in the Republic of Korea by using microscopy and PCR. In addition, the prevalence of Eimeria species was analysed according to age, type of cattle, region, season and nature of diarrhoea. Overall, Eimeria species were identified in 279 of the 1261 (22.1 per cent) faecal samples through microscopy, and statistical analysis revealed a lower prevalence in calves aged than three weeks or less and higher prevalence in cattle with haemorrhagic diarrhoea. Of the 279 microscopy-positive samples, E bovis, E zuernii and E auburnensis were identified in 100 (7.9 per cent), 83 (6.6 per cent) and 27 (2.1 per cent) faecal samples, respectively, by using PCR. To the authors' knowledge, this study is the first to apply PCR for epizootiology of bovine coccidiosis.

  • bovine coccidiosis
  • diarrhoea
  • PCR
  • risk factor
  • species identification
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  • Funding A grant from the Animal and Plant Quarantine Agency of the Ministry of Agriculture, Food and Rural Affairs of the Republic of Korea [B-1543069-2017-18].

  • Competing interests None declared.

  • Patient consent Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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