Prion Disease in Dromedary Camels, Algeria.

Prion Disease in Dromedary Camels, Algeria.
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DOI:
10.3201/eid2406.172007
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发表时间:
2018-06
影响因子:
11.8
通讯作者:
Vaccari G
Vaccari G
中科院分区:
医学2区
文献类型:
--
作者:
Babelhadj B;Di Bari MA;Pirisinu L;Chiappini B;Gaouar SBS;Riccardi G;Marcon S;Agrimi U;Nonno R;Vaccari G

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普恩病毒可导致致命的和可传播的神经退行性疾病,包括人类的克雅氏病、小型反刍动物的瘙痒病和牛海绵状脑病(BSE)。自1996年英国爆发疯牛病疫情和相关的人类感染后,人们普遍对动物普里恩病毒表示担忧。我们在阿尔及利亚的单峰骆驼(Camelus Dromedarius)身上发现了一种Pron病。2015-2016年间,在被送往Ouargla屠宰场屠宰的独角兽中,有3.1%的人出现了Prion病的症状。我们通过检测3只有症状的动物脑组织中的病理性神经变性和疾病特异性蛋白(PrPSc)来确认诊断。在淋巴组织中检测Pron可提示该病的感染性。PrPSc的生化特性与疯牛病和瘙痒病不同。我们在地理上分布广泛的牲畜物种中识别这种普里恩疾病,需要紧急加强对人类和动物健康的潜在风险的监测和评估。
Prions cause fatal and transmissible neurodegenerative diseases, including Creutzfeldt-Jakob disease in humans, scrapie in small ruminants, and bovine spongiform encephalopathy (BSE). After the BSE epidemic, and the associated human infections, began in 1996 in the United Kingdom, general concerns have been raised about animal prions. We detected a prion disease in dromedary camels (Camelus dromedarius) in Algeria. Symptoms suggesting prion disease occurred in 3.1% of dromedaries brought for slaughter to the Ouargla abattoir in 2015–2016. We confirmed diagnosis by detecting pathognomonic neurodegeneration and disease-specific prion protein (PrPSc) in brain tissues from 3 symptomatic animals. Prion detection in lymphoid tissues is suggestive of the infectious nature of the disease. PrPSc biochemical characterization showed differences with BSE and scrapie. Our identification of this prion disease in a geographically widespread livestock species requires urgent enforcement of surveillance and assessment of the potential risks to human and animal health.
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