Vector of Trypanosoma copemani identified as Ixodes sp.

Austen, J. M., Ryan, U. M., Friend, J. A., Ditcham, W. G. F. and Reid, S. A. (2011) Vector of Trypanosoma copemani identified as Ixodes sp.. Parasitology, 138 7: 866-872. doi:10.1017/S0031182011000497

Author Austen, J. M.
Ryan, U. M.
Friend, J. A.
Ditcham, W. G. F.
Reid, S. A.
Title Vector of Trypanosoma copemani identified as Ixodes sp.
Formatted title
Vector of Trypanosoma copemani identified as Ixodes sp.
Journal name Parasitology   Check publisher's open access policy
ISSN 0031-1820
Publication date 2011
Sub-type Article (original research)
DOI 10.1017/S0031182011000497
Open Access Status
Volume 138
Issue 7
Start page 866
End page 872
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Cambridge University Press
Language eng
Abstract A total of 41 ticks were collected from 15 quokkas on Bald Island and 2 ticks from a Gilbert's potoroo from Two Peoples Bay. Three species of Ixodid ticks Ixodes australiensis, Ixodes hirsti and Ixodes myrmecobii were identified on the quokkas known to have a high prevalence of Trypanosoma copemani. Tick faeces from ticks isolated from 8 individual quokkas and a Gilbert's potoroo were examined with one identified as positive for trypanosomes. Faecal examination revealed trypanosomes similar to in vitro life-cycle stages of T. copemani. In total 12 ticks were dissected and trypanosomes found in sections of their midgut and haemolymph, 49 and 117 days after collection. Tick faeces, salivary glands and midguts from I. australiensis were screened using an 18S rRNA PCR with amplification seen only from the midguts. Sequencing showed 100% homology to T. copemani (genotype A) and 99·9% homology to the wombat (AII) isolate of T. copemani. Trypanosomes were only detected in I. australiensis as neither I. hirsti nor I. myrmecobii survived the initial 30-day storage conditions. We therefore identify a vector for T. copemani as I. australiensis and, given the detection of trypanosomes in the faeces, suggest that transmission is via the faecal-oral route.
Keyword Ixodes
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Public Health Publications
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
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