Abstract
A molecular survey was undertaken in the Black Sea region of Turkey to determine the presence of Theileria and Babesia species of medical and veterinary importance. The ticks were removed from sheep and goats, pooled according to species and locations, and analyzed by PCR-based reverse line blot (RLB) and sequencing. A total of 2241 ixodid ticks belonging to 5 genus and 12 species were collected and divided into 310 pools. Infection rates were calculated as the maximum likelihood estimation (MLE) with 95 % confidence intervals (CI). Of the 310 pools tested, 46 (14.83 %) were found to be infected with Theileria or Babesia species, and the overall MLE of the infection rate was calculated as 2.27 % (CI 1.67–2.99). The MLE of the infection rates were calculated as 0.691 % (CI 0.171–1.78) in Haemaphysalis parva, 1.47 % (CI 0.081–6.37) in Rhipicephalus sanguineus, 1.84 % (CI 0.101–7.87) in Ixodes ricinus, 2.86 % (CI 1.68–4.48) in Rhipicephalus turanicus, 5.57 % (CI 0.941–16.3) in Hyalomma marginatum, and 6.2 % (CI 4.02–9.02) in Rhipicephalus bursa. Pathogens identified in ticks included Theileria ovis, Babesia ovis, Babesia bigemina, and Babesia microti. Most tick pools were infected with a single pathogen. However, five pools displayed mixed infections with T. ovis and B. ovis. This study provides the first molecular evidence for the presence of B. microti in ticks in Turkey.
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Acknowledgments
This work was supported financially by grants (109 O 766) from the Scientific and Technical Research Council of Turkey (TUBITAK) and (45-M-12) Commission of Scientific Research Projects, Karamanoğlu Mehmetbey University. We thank all veterinarians, technicians, and also animal breeders in the region for their kind help during sample collection. We are also grateful to Weidong Gu (Health Statistician, PhD, Centers for Disease Control and Prevention, Atlanta, GA, USA) for MLE-IR program used for estimating infection rates of pooled samples.
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Nucleotide sequence data reported in this paper are available in GenBank, EMBL 21, and DDBJ databases under accession numbers from KF737169 to KF737171.
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Aydin, M.F., Aktas, M. & Dumanli, N. Molecular identification of Theileria and Babesia in ticks collected from sheep and goats in the Black Sea region of Turkey. Parasitol Res 114, 65–69 (2015). https://doi.org/10.1007/s00436-014-4160-x
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DOI: https://doi.org/10.1007/s00436-014-4160-x