Infection of dogs with SARS-CoV-2.

Infection of dogs with SARS-CoV-2.
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DOI:
10.1038/s41586-020-2334-5
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发表时间:
2020-10
期刊:
影响因子:
64.8
通讯作者:
Peiris M
Peiris M
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Sit THC;Brackman CJ;Ip SM;Tam KWS;Law PYT;To EMW;Yu VYT;Sims LD;Tsang DNC;Chu DKW;Perera RAPM;Poon LLM;Peiris M

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2019年12月,SARS-CoV-2在武汉出现,并引发了大流行性呼吸道疾病COVID-19。2003年,在家猫和一只狗身上发现了密切相关的SARS-CoV。然而,关于家养宠物哺乳动物对SARS-CoV-2的易感性知之甚少。香港特别行政区确诊人类感染COVID-19病例的家庭中,15只狗中有两只被发现感染,使用定量RT-PCR,血清学,病毒基因组测序,以及一只狗的病毒分离。在一只17岁的绝育雄性博美犬中,从13天内收集的5个鼻拭子中检测到SARS-CoV-2 RNA。一只2.5岁的雄性德国牧羊犬在两次感染SARS CoV-2 RNA,并从鼻拭子和口腔拭子中分离出病毒。使用空斑减少中和试验检测两只犬的抗体应答。来自两只狗的病毒基因序列与在相应的人类病例中检测到的病毒相同。这些动物在隔离期间保持无症状。证据表明,这些是SARS-CoV-2在人与动物之间传播的实例。目前还不清楚受感染的狗是否会将病毒传播给其他动物或重新传播给人类。
SARS-CoV-2 emerged in Wuhan in December 2019 and caused the pandemic respiratory disease, COVID-19. In 2003, the closely related SARS-CoV had been detected in domestic cats and a dog. However, little is known about the susceptibility of domestic pet mammals to SARS-CoV-2. Two of 15 dogs from households with confirmed human cases of COVID-19 in Hong Kong SAR were found to be infected using quantitative RT-PCR, serology, sequencing the viral genome, and in one dog, virus isolation. SARS-CoV-2 RNA was detected in a 17 year-old neutered male Pomeranian from five nasal swabs collected over a 13 day period. A 2.5 yo male German Shepherd dog had SARS CoV-2 RNA on two occasions and virus was isolated from nasal and oral swabs. Both dogs had antibody responses detected using plaque reduction neutralisation assays. Viral genetic sequences of viruses from the two dogs were identical to the virus detected in the respective human cases. The animals remained asymptomatic during quarantine. The evidence suggests that these are instances of human-to-animal transmission of SARS-CoV-2. It is unclear whether infected dogs can transmit the virus to other animals or back to humans.
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