Korean J Parasitol.  2018 Dec;56(6):589-596. 10.3347/kjp.2018.56.6.589.

Tick-Borne Pathogens in Ixodid Ticks from Poyang Lake Region, Southeastern China

Affiliations
  • 1Nanchang Center for Disease Control and Prevention, Nanchang, 330038, Jiangxi, P.R. China. nccdcchy@126.com
  • 2National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, 080-8555, Hokkaido, Japan.
  • 3State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102200, P.R. China.

Abstract

Ticks are the vectors of various pathogens, threatening human health and animal production across the globe. Here, for the first time we detected Ricketssia spp., Borrelia spp. and protozoan in ticks from Poyang Lake region in Jiangxi Province of eastern China. In 3 habitat categories and on 12 host species, 311 ticks from 11 species were collected. Haemaphysalis longicornis was the predominant species, accounting for 55.63%, followed by Rhipicephalus microplus, Haemaphysalis flava and Ixodes granulatus. Of the collected ticks, 7.07% were positive for tick-borne pathogens, and H. longicornis and H. flava were found to be co-infected with Ricketssia spp. and protozoan. H. flava was the most detected positive for tick-borne pathogens, whereas H. longicornis had the lowest infection rate, and the difference in infection rates between tick species was significant (χ²=61.24, P < 0.001). Furthermore, adult ticks demonstrated remarkably greater infection rate than immature ticks (χ²=10.12, P=0.018), meanwhile ticks on Erinaceidae showed significantly higher positivity than ticks collected on other host species (χ²=108.44, P < 0.001). Genetic fragment sequencing and analyses showed at least 4 pathogen species presence in ticks, namely Borrelia yangtzensis, Rickettsia slovaca or Rickettsia raoultii related genospecies, Babesia vogeli and Hepatozoon canis or Hepatozoon felis related genospecies. The finding indicates that the abundant ticks can carry diverse pathogens in Poyang Lake region, and pathogen infection is highly related to species, vertebrate hosts and life stages of ticks.

Keyword

Tick-borne pathogens (TBPs); tick; epidemiology; risk factors; Poyang Lake region

MeSH Terms

Adult
Animals
Babesia
Borrelia
Cats
China*
Ecosystem
Epidemiology
Felis
Hedgehogs
Humans
Ixodes
Lakes*
Rhipicephalus
Rickettsia
Risk Factors
Ticks*
Vertebrates
Full Text Links
  • KJP
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr