Identification and molecular survey of Borrelia burgdorferi sensu lato in sika deer (Cervus nippon) from Jilin Province, north-eastern China.
Lyme disease caused by Borrelia burgdorferi sensu lato (s.l.) is a common disease of domestic animals and wildlife worldwide. Sika deer is first-grade state-protected wildlife animals in China and have economic consequences for humans. It is reported that sika deer may serve as an important reservoir host for several species of B. burgdorferi s.l. and may transmit these species to humans and animals. However, little is known about the presence of Borrelia pathogens in sika deer in China. In this study, the existence and prevalence of Borrelia sp. in sika deer from four regions of Jilin Province in China was assessed. Seventy-one blood samples of sika deer were collected and tested by nested-PCRs based on 16S ribosomal RNA (16S rRNA), outer surface protein A (OspA), flagenllin (fla), and 5S-23S rRNA intergenic spacer (5S-23S rRNA) genes of B. burgdorferi s.l. Six (8.45%) samples were positive for Borrelia sp. based on sequences of 4 genes. The positive samples were detected 18 for 16S rRNA, 10 for OspA, 16 for fla and 6 for 5S-23S, with the positive rates 25.35% (95% CI=3.8-35.6), 14.08% (95% CI=3.0-21.6), 22.54% (95% CI=4.3-36.9) and 8.45% (95% CI=1.7-22.9), respectively. Sequence analysis of the positive PCR products revealed that the partial 4 genes sequences in this study were all most similar to the sequences of B. garinii and B. burgdorferi sensu stricto (s.s.), no other Borrelia genospecies were found. This is the first report of Borrelia pathogens in sika deer in China. The findings in this study indicated that sika deer as potential natural host and may spread Lyme disease pathogen to animals, ticks, and even humans.
The College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, PR China; State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, PR China. Electronic address: zhaibintao@163.com.
Bintao
B
Zhai
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, PR China. Electronic address: niuqingli@caas.cn.
Qingli
Q
Niu
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, PR China. Electronic address: yangjifei@caas.cn.
Jifei
J
Yang
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, PR China. Electronic address: liuzhijie@caas.cn.
Zhijie
Z
Liu
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, PR China. Electronic address: liujunlong@caas.cn.
Junlong
J
Liu
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, PR China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China. Electronic address: yinhong@caas.cn.
Hong
H
Yin
The College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, PR China. Electronic address: zengqy@gsau.edu.cn.
Qiaoying
Q
Zeng
D000818:Animals; D015748:Borrelia burgdorferi Group / Q000235:genetics* / Q000502:physiology; D002681:China / Q000453:epidemiology; D017931:DNA Primers; D003670:Deer / Q000469:parasitology*; D006801:Humans; D026863:Ixodidae / Q000382:microbiology; D008193:Lyme Disease / Q000635:transmission / Q000662:veterinary*; D016133:Polymerase Chain Reaction; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D011795:Surveys and Questionnaires
D017931:DNA Primers; D012336:RNA, Ribosomal, 16S
Borrelia burgdorferi sensu lato; Identification; Sika deer; Survey