Rodents, goats and dogs - Their potential roles in the transmission of schistosomiasis in China

Clare F. Van Dorssen, Catherine A. Gordon, Yuesheng Li, Gail M. Williams, Yuanyuan Wang, Zhenhua Luo, Geoffrey N. Gobert, Hong You, Donald P. McManus*, Darren J. Gray

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

15 Citations (Scopus)

Abstract

Schistosomiasis in China has been substantially reduced due to an effective control programme employing various measures including bovine and human chemotherapy, and the removal of bovines from endemic areas. To fulfil elimination targets, it will be necessary to identify other possible reservoir hosts for Schistosoma japonicum and include them in future control efforts. This study determined the infection prevalence of S. japonicum in rodents (0-9·21%), dogs (0-18·37%) and goats (6·9-46·4%) from the Dongting Lake area of Hunan province, using a combination of traditional coproparasitological techniques (miracidial hatching technique and Kato-Katz thick smear technique) and molecular methods [quantitative real-time PCR (qPCR) and droplet digital PCR (ddPCR)]. We found a much higher prevalence in goats than previously recorded in this setting. Cattle and water buffalo were also examined using the same procedures and all were found to be infected, emphasising the occurrence of active transmission. qPCR and ddPCR were much more sensitive than the coproparasitological procedures with both KK and MHT considerably underestimating the true prevalence in all animals surveyed. The high level of S. japonicum prevalence in goats indicates that they are likely important reservoirs in schistosomiasis transmission, necessitating their inclusion as targets of control, if the goal of elimination is to be achieved in China.

Original languageEnglish
Pages (from-to)1633-1642
Number of pages10
JournalParasitology
Volume144
Issue number12
DOIs
Publication statusPublished - 01 Oct 2017

Keywords

  • bovines
  • ddPCR
  • dogs
  • Dongting Lake
  • goats
  • KK
  • MHT
  • PR China
  • qPCR
  • rodents
  • Schistosoma japonicum
  • schistosomiasis

ASJC Scopus subject areas

  • Parasitology
  • Animal Science and Zoology
  • Infectious Diseases

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