Identification of zoonotic Giardia genotypes in marsupials in Australia

Thompson, Jacqui, Yang, Rongchang, Power, Michelle, Hufschmid, Jasmin, Beveridge, Ian, Reid, Simon, Ng, Josephine, Armson, Anthony and Ryan, Una (2008) Identification of zoonotic Giardia genotypes in marsupials in Australia. Experimental Parasitology, 120 1: 88-93. doi:10.1016/j.exppara.2008.05.002

Author Thompson, Jacqui
Yang, Rongchang
Power, Michelle
Hufschmid, Jasmin
Beveridge, Ian
Reid, Simon
Ng, Josephine
Armson, Anthony
Ryan, Una
Title Identification of zoonotic Giardia genotypes in marsupials in Australia
Formatted title
Identification of zoonotic Giardia genotypes in marsupials in Australia
Journal name Experimental Parasitology   Check publisher's open access policy
ISSN 0014-4894
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.exppara.2008.05.002
Open Access Status Not yet assessed
Volume 120
Issue 1
Start page 88
End page 93
Total pages 6
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Abstract A total of 421 fecal samples from a variety of captive and wild marsupial hosts in Western Australia, Victoria and South Australia were screened for the presence of Giardia species/genotypes using PCR and sequence analysis of a fragment of the 18S rRNA gene. Giardia spp. were identified in 13.4% (28/209) of samples from captive marsupials and 13.7% (29/212) of samples from wild marsupials. Sequence analysis at the 18S locus identified the zoonotic Giardia duodenalis Genotypes A and B in both captive and wild marsupials. Eight isolates were typed as genotype B3 and B4 at the gdh locus, although 7/8 were typed as genotype A at the 18S rRNA locus. The possible reasons for this discordance are discussed. This is the first report of genotype B and only the second report of genotype A in marsupials. As some of the genotype B isolates were identical to human-derived Giardia gdh sequences, these results suggest that marsupials in catchments may pose a public health risk and therefore warrant further investigation.
Keyword 18S rRNA
Assemblage A
Assemblage B
Genotype A
Genotype B
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Public Health Publications
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