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Bennett MD Woolford L Banazis MJ O'Hara AJ Warren KS Nicholls PK Sims C Fenwick SG 《EcoHealth》2011,8(4):519-524
The aim of this work is to investigate the presence of Coxiella burnetii in Perameles bougainville and their ticks on two islands off Western Australia. Haemaphysalis humerosa, Haemaphysalis ratti, and Haemaphysalis lagostrophi were collected from P. bougainville on Bernier and Dorre Islands from 2005 to 2007; only Amblyomma limbatum was collected from humans over the same interval. One of 13 tick samples and 1 of 12 P. bougainville fecal samples were positive for C. burnetii DNA using quantitative polymerase chain reaction. DNA fragments had >99% similarity to published C. burnetii sequences. Three of 35 P. bougainville sera tested positive for anti-C. burnetii antibodies using enzyme-linked immunosorbent assay. C. burnetii was found in P. bougainville feces and a H. humerosa tick on Dorre Island and Bernier Island, respectively. This is the first reported use of enzyme-linked immunosorbent assay for screening of P. bougainville sera. The risk of zoonotic Q fever infection for human visitors to these islands is considered relatively low, however, appropriate precautions should be taken when handling western barred bandicoots, their feces and their ticks on Bernier and Dorre Islands. 相似文献
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Lucy Woolford Mark David Bennett Colleen Sims Neil Thomas James Anthony Friend Philip Keith Nicholls Kristin Shannon Warren Amanda Jane O’Hara 《EcoHealth》2009,6(3):414-425
Once widespread across western and southern Australia, wild populations of the western barred bandicoot (WBB) are now only
found on Bernier and Dorre Islands, Western Australia. Conservation efforts to prevent the extinction of the WBB are presently
hampered by a papillomatosis and carcinomatosis syndrome identified in captive and wild bandicoots, associated with infection
with the bandicoot papillomatosis carcinomatosis virus type 1 (BPCV1). This study examined the prevalence and distribution
of BPCV1 and the associated syndrome in two island and four mainland (reintroduced and captive) WBB populations in Western
Australia, and factors that may be associated with susceptibility to this syndrome. BPCV1 and the syndrome were found in the
wild WBB population at Red Cliff on Bernier Island, and in mainland populations established from all or a proportion of founder
WBBs from Red Cliff. BPCV1 and the syndrome were not found in the wild population on Dorre Island or in the mainland population
founded by animals exclusively from Dorre Island. Findings suggested that BPCV1 and the syndrome were disseminated into mainland
WBB populations through the introduction of affected WBBs from Red Cliff. No difference in susceptibility to the syndrome
was found between Dorre Island, Bernier Island, and island-cross individuals. Severity of lesions and the number of affected
animals observed in captivity was greater than that observed in wild populations. This study provided epidemiological evidence
to support the pathological and molecular association between BPCV1 infection and the papillomatosis and carcinomatosis syndrome
and revealed increasing age as an additional risk factor for this disease. 相似文献