Tick distribution and detection of Babesia and Theileria species in Eastern and Southern Kazakhstan
Sang C. Yang M. Xu B. Liu G. Yang Y. Kairullayev K. Bauyrzhan O. Hazihan W. Hornok S. Wang Y.
November 2021Elsevier GmbH
Ticks and Tick-borne Diseases
2021#12Issue 6
Piroplasmosis is an economically important tick-borne disease worldwide. However, little is known about the presence of Babesia spp. and Theileria spp. in ticks in Eastern and Southern Kazakhstan (ESK). During 2016 – 2019, adult ticks (at 26 sampling sites in 16 districts of 5 oblasts in ESK) were collected. Tick species were identified according to morphological and molecular characteristics. Two fragments (487 bp and 438 bp) of 18S ribosomal RNA (18S rRNA) were used to determine piroplasm species in representative 698 ticks. The genotype characteristics of Babesia caballi and Theileria equi were further analyzed by longer 18S rRNA gene fragments. A total of 6107 adult ticks (4558 parasitizing ticks and 1549 off-host ticks), including 4665 hard ticks and 1442 soft ticks, were collected from their natural hosts (cattle, horses, sheep, camels, shepherd dogs and hedgehogs) and the surrounding environment, respectively. Among the hard tick species, Dermacentor marginatus (62.59%, 2920/4665) was the most abundant, followed by Hyalomma asiaticum (19.36%, 903/4665) and Hyalomma detritum (9.95%, 464/4665). All soft ticks were identified as Argas persicus. 16S ribosomal DNA (16S rDNA) phylogenic analysis showed that several tick species in Kazakhstan, as exemplified by Haemaphysalis erinacei and D. marginatus, clustered together with conspecific ticks reported from China. Five species of piroplasms, i.e. Babesia occultans, Babesia caballi, Theileria ovis, Theileria annulata and Theileria equi, were detected in 698 representative ticks. Genotype E of T. equi in Almaty, and genotype A of B. caballi in Almaty and South Kazakhstan were identified.
Babesia , Kazakhstan , Theileria , Ticks
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Department of Basic Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region, 832002, China
Department of Forestry, School of Agriculture, Shihezi University, Shihezi, Xinjiang, Uygur Autonomous Region, 832000, China
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Key Laboratory of Parasitology and Vector Biology of the Chinese Ministry of Health, Shanghai, 200025, China
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1#, Lanzhou, 730046, Gansu, China
Emergency Department, Shihezi City Peoples Hospital, Shihezi, Xinjiang Uygur Autonomous Region, 832000, China
Department of Food Engineering, Kazakh National Agrarian University, Almaty, province, Kazakhstan
School of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region, 832000, China
Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
Department of Basic Medicine
Department of Forestry
National Institute of Parasitic Diseases
State Key Laboratory of Veterinary Etiological Biology
Emergency Department
Department of Food Engineering
School of Animal Science and Technology
Department of Parasitology and Zoology
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