Investigation into potential transmission sources of Giardia duodenalis in a threatened marsupial ( Petrogale penicillata )

Vermeulen, Elke T.; Ashworth, Deborah L.; Eldridge, Mark D. B.; Power, Michelle

doi:10.1016/j.meegid.2015.05.015

Cited by 17 publications

(14 citation statements)

References 27 publications

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“…Giardia peramelis has not been isolated from other endemic Australian species tested for Giardia spp. (McCarthy et al, 2008; Thompson et al, 2008; Thompson et al, 2010; Ng et al, 2011; Thomasz, 2014; Vermeulen et al, 2015; Wait et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…Infection with species of the gastrointestinal protozoan parasite genus Giardia in wildlife populations has been linked to anthropogenic sources in a diverse range of host species and environments worldwide (e.g. Graczyk et al, 2002; Kutz et al, 2008; Teichroeb et al, 2009; Ash et al, 2010; Johnston et al, 2010; Thompson et al, 2010; Thompson, 2013; Delport et al, 2014; Vermeulen et al, 2015). The presence of anthropozoonotic species of Giardia in wildlife populations, particularly at wildlife-domestic animal-human interfaces, are of concern because of the potential impacts of these infections on wildlife population health, and because wildlife species may act as a reservoir of infection of public health significance (Kutz et al, 2009; Thompson, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Anthropozoonotic significance, risk factors and spatial distribution of Giardia spp. infections in quenda (Isoodon obesulus) in the greater Perth region, Western Australia

Hillman

Ash

Lymbery

et al. 2019

International Journal for Parasitology: Parasites and Wildlife

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Giardia spp. infections in wildlife populations have been linked to anthropogenic sources of infection and public health risk in a diversity of wildlife species and ecological locations worldwide. Quenda ( Isoodon obesulus ) remain in many urbanised areas of Perth, Western Australia, and can be gregarious in their interactions with humans and domestic animals. In a previous study, a high prevalence of Giardia spp. infection was identified amongst quenda trapped in urbanised environments and bushland in Perth, Western Australia. This study aimed to expand on that finding, by: identifying and estimating the prevalence of particular species of Giardia infecting quenda, and thus clarifying their anthropozoonotic/public health significance; identifying risk factors for Giardia spp. infection; and investigating putative associations between infection and indicators of ill health. Giardia spp. infections in Perth quenda are overwhelmingly of the host-adapted, non-zoonotic Giardia peramelis (apparent prevalence 22.2%; 95% CI 17.7–27.4%), indicating that quenda are not a substantial veterinary public health risk regarding this parasite genus. However, one case each of Giardia duodenalis and Giardia canis genotype D were identified in quenda trapped in urbanised environments (apparent prevalences 0.4%; 95% CI 0.1–1.9%). In quenda, Giardia spp. infection is associated with Cryptosporidium infection and flea infection intensity, which may reflect host population density, or regarding Cryptosporidium spp., similar transmission pathways or synergistic interactions between these taxa within the host. Giardia spp. infection is not associated with the measured indicators of ill health in Perth quenda, but this finding is representative of Giardia peramelis only, given the apparent rarity of other Giardia sp. infections in this study.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anthropozoonotic significance, risk factors and spatial distribution of Giardia spp. infections in quenda (Isoodon obesulus) in the greater Perth region, Western Australia

Hillman

Ash

Lymbery

et al. 2019

International Journal for Parasitology: Parasites and Wildlife

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“…The ‘quenda genotype’ of Giardia has not been isolated from other Australian marsupial species surveyed for Giardia spp. (McCarthy et al., 2008, Thompson et al., 2008, Thompson et al., 2010, Ng et al., 2011b, Thomasz, 2014, Vermeulen et al., 2015). …”

Section: Introductionmentioning

confidence: 99%

Confirmation of a unique species of Giardia , parasitic in the quenda ( Isoodon obesulus )

Hillman

Ash

Elliot

et al. 2016

International Journal for Parasitology: Parasites and Wildlife

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The ‘quenda genotype’ of Giardia was first identified in quenda (syn. southern brown bandicoots, Isoodon obesulus) in Western Australia in 2004. We aimed to formally describe this genotype as a species of Giardia, Giardia peramelis. Seventy five faecal samples positive for G. peramelis were obtained from quenda within the Statistical Division of Perth, Western Australia. These samples were used in morphological and molecular characterisation of G. peramelis. PCR amplification and sequencing was most successful at the 18S rRNA and ITS1-5.8s-ITS2 loci. Phylogenetic analyses placed G. peramelis external to the ‘Giardia duodenalis species complex’ and Giardia microti. This confirmed the uniqueness of G. peramelis, warranting classification as a separate species of Giardia. Study findings suggest quenda are a natural host for G. peramelis.

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“…Since cattle had been found to be one of the natural reservoirs of the Giardia sp. (Barutzki & Schaper,2003;Vermeulen et al, 2015), a study to establish the role of the cattle in the transmission of the parasite was conducted.…”

Section: Weija (Joma)mentioning

confidence: 99%

Prevalence of <i>Giardia species</i> in Cattle Faecal Matter in Selected Farms in Weija and Kpong Major Water Supply Heads to Accra, Ghana.

Mensah

Annang

Ayeh‐Kumi

et al. 2019

gjs

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In developing countries including Ghana, giardiasis plays a major role in gastroenteritis in vertebrate. It poses health and socio-economic burden, and continues to be one of the causes of infant and calf mortality. Their infection continues to thrive in humans due to the zoonotic transmission of infected domesticated animals including cattle, dogs and cats, and their continual presence in water bodies. The objective of this study was to establish their presence and evaluate the prevalence of Giardia sp. in cattle faecal matter in the environment in the Kpong and Weija communities. The Iron-haematoxylin staining techniques was used to analyze the faecal samples in order to identify Giardia sp. (Student t- test and Chi square were the statistical analyses) used for the studies. About five percent (5.3%) prevalence was obtained in both communities and this was significant (p> 0.05). The parasite was found to be most prevalent (9.4%) in calves less than 3 months old and this decreased with age of calf. It was also observed that Giardia plays an important role in the cause of diarrhoea in cattle. There is the need to educate people on the disease and its implication on the quality of water from the treatment plants. Keywords: Giardia sp, water, contamination, diarrhoea, infant mortality.

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Investigation into potential transmission sources of Giardia duodenalis in a threatened marsupial ( Petrogale penicillata )

Cited by 17 publications

References 27 publications

Anthropozoonotic significance, risk factors and spatial distribution of Giardia spp. infections in quenda (Isoodon obesulus) in the greater Perth region, Western Australia

Anthropozoonotic significance, risk factors and spatial distribution of Giardia spp. infections in quenda (Isoodon obesulus) in the greater Perth region, Western Australia

Confirmation of a unique species of Giardia , parasitic in the quenda ( Isoodon obesulus )

Prevalence of <i>Giardia species</i> in Cattle Faecal Matter in Selected Farms in Weija and Kpong Major Water Supply Heads to Accra, Ghana.

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