A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea

Reid, Simon; Husein, Amir; Gw, Hutchinson; Copeman, D. B.

doi:10.1590/s0074-02761999000200013

Cited by 23 publications

(20 citation statements)

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“…It has been described in coatis (Nasua nasua), sheep, goats, dogs, rusa deer (Cervus timorensis rusa), camels and wallabies (Arora and Pathak 1995;Audu et al 1999;Aquino et al 1999;Reid et al 2001;Herrera et al 2002;Atarhouch et al 2003), but the mechanism is far from clarified. The following hypotheses have been proposed: hemolysis due to direct action of the parasites on red blood cells, increase of endocytosis by spleen cells, and intravascular clotting due to microvascular lesions and hemolysis.…”

Section: Discussionmentioning

confidence: 99%

Trypanosoma evansi in inbred and Swiss-Webster mice: distinct aspects of pathogenesis

et al. 2004

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Trypanosoma evansi (Trypanosomatidae, Kinetoplastida) is a salivarian trypanosomatid that infects eight mammal orders spread over America, Europe and Asia. In Brazil, T. evansi is the etiological agent of "Mal de Cadeiras", a horse disease very often described in the region known as Pantanal do Mato Grosso. Few data concerning the genetic diversity and biology of subpopulations of T. evansi that circulate in Brazil are available. The factors that modulate the interaction of this parasite with its hosts also remain to be elucidated. Here we evaluated the course of experimental infection of six T. evansi isolates derived from domestic and wild animals in Swiss-Webster mice and three Mus musculus lineages. The follow-up included biological, immunological as well as biochemical and hematological parameters. The same isolates as well as three others were characterized by pulsed-field electrophoresis. Our results showed that T. evansi isolates displayed significant differences regarding behavior and morbidity patterns in the distinct mouse lineages. Nevertheless, these differences could not be correlated with pulsed-field electrophoresis profiles. Indeed, concerning this molecular marker, only microheterogeneity was observed. Moreover, we observed that the outcome of the infection is defined by both host genetic background and peculiarities (virulence factors) of the distinct T. evansi isolates. Anemia and hypoglycemia were the only features that could be observed in all mouse lineages, independently of the inoculated T. evansi subpopulation. In addition, our data also show that Mus musculus is a suitable model host for the study of the different pathogenetic features of T. evansi infection.

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Section: Discussionmentioning

confidence: 99%

Trypanosoma evansi in inbred and Swiss-Webster mice: distinct aspects of pathogenesis

et al. 2004

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“…Australian wild deer could play a significant role in the introduction of surra, given that rusa deer have been implicated in the transmission of this disease from Indonesia to Papua New Guinea, posing a high biosecurity risk to Australia (Reid et al 1999). There is a protocol to implement if such a disease establishes in Australia (Animal Health Australia 2011), but our ability to effectively contain an emergency disease in wild deer populations is unknown.…”

Section: Vectors Of Diseases and Pathogensmentioning

confidence: 99%

A systematic review of the impacts and management of introduced deer (family Cervidae) in Australia

et al. 2016

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Abstract. Deer are among the world's most successful invasive mammals and can have substantial deleterious impacts on natural and agricultural ecosystems. Six species have established wild populations in Australia, and the distributions and abundances of some species are increasing. Approaches to managing wild deer in Australia are diverse and complex, with some populations managed as 'game' and others as 'pests'. Implementation of cost-effective management strategies that account for this complexity is hindered by a lack of knowledge of the nature, extent and severity of deer impacts. To clarify the knowledge base and identify research needs, we conducted a systematic review of the impacts and management of wild deer in Australia. Most wild deer are in south-eastern Australia, but bioclimatic analysis suggested that four species are well suited to the tropical and subtropical climates of northern Australia. Deer could potentially occupy most of the continent, including parts of the arid interior. The most significant impacts are likely to occur through direct effects of herbivory, with potentially cascading indirect effects on fauna and ecosystem processes. However, evidence of impacts in Australia is largely observational, and few studies have experimentally partitioned the impacts of deer from those of sympatric native and other introduced herbivores. Furthermore, there has been little rigorous testing of the efficacy of deer management in Australia, and our understanding of the deer ecology required to guide deer management is limited. We identified the following six priority research areas: (i) identifying long-term changes in plant communities caused by deer; (ii) understanding interactions with other fauna; (iii) measuring impacts on water quality; (iv) assessing economic impacts on agriculture (including as disease vectors); (v) evaluating efficacy of management for mitigating deer impacts; and (vi) quantifying changes in distribution and abundance. Addressing these knowledge gaps will assist the development and prioritisation of cost-effective management strategies and help increase stakeholder support for managing the impacts of deer on Australian ecosystems.

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“…Parasite is also distributed in Western countries Latin America, Central America to Mexico and Argentina to Panama Spain (Wells, 1972;Gutierrez et al, 2006). The distribution of parasite is suspected in Papua New Guinea (Reid et al, 1999). Surra in India is very old with records dating back from VIII centuries B.C.…”

Section: Epidemiologymentioning

confidence: 99%

Insight into Trypanosomiasis in Animals: Various Approaches for its Diagnosis, Treatment and Control: A Review

Jaiswal¹,

Sudan²,

Neha³

et al. 2015

Asian J. of Animal Sciences

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Trypanosomiasis is a haemoprotozoan disease entity caused by various members of Trypanosoma spp. affecting different species of domestic and wild animals like horses, mule, donkey, camel, cattle, buffaloes, sheep, goat, dogs, pig, elephant, deer, foxes, tiger and jackals with chief clinical signs of high intermittent fever, anaemia, loss of weight, edema of dependent parts, nervous symptoms, abortion and is responsible for major production losses. It can be transmitted through the biting flies wherein, the parasite may undergo biological or mechanical transmission. Various diagnostic methods from traditional to molecular are available for its diagnosis viz., microscopic examination, DNA detection by PCR, Card Agglutination Test and ELISA. The present review addresses important insights into trypanosomiasis, the etiological agent, advances and trends in its diagnosis, treatment aspects, prevention and control measures; which would help in limiting its prevalence in animals.

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A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea

Abstract: Movement of transmigrants and livestock from western Indonesia to southeastern areas of Irian Jaya near the border with Papua New Guinea may pose a risk of introducing

Cited by 23 publications

References 1 publication

Trypanosoma evansi in inbred and Swiss-Webster mice: distinct aspects of pathogenesis

Trypanosoma evansi in inbred and Swiss-Webster mice: distinct aspects of pathogenesis

A systematic review of the impacts and management of introduced deer (family Cervidae) in Australia

Insight into Trypanosomiasis in Animals: Various Approaches for its Diagnosis, Treatment and Control: A Review

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