Candido M, Alencar A L F, Almeida-Queiroz S R, Buzinaro M G, Munin F S, Godoy S H S, Livonesi M C, Fernandes A M, Sousa R L M
Department of Veterinary Medicine,Faculty of Animal Science and Food Engineering,University of São Paulo (FZEA/USP),São Paulo,Brazil.
Department of Preventive Veterinary Medicine and Animal Reproduction,São Paulo State University (UNESP),São Paulo,Brazil.
Epidemiol Infect. 2016 Jul;144(9):1876-8. doi: 10.1017/S0950268816000029. Epub 2016 Jan 22.
Nebovirus is a new genus of viruses belonging to the Caliciviridae family recently characterized in cattle, and is associated with gastrointestinal disorders, such as diarrhoea, anorexia and intestinal lesions particularly in calves. The aim of this study was to investigate the prevalence of neboviruses in Brazilian cattle and analyse phylogenetically the virus strains detected. A prevalence of 4·8% of neboviruses in faecal samples from 62 head of cattle from different Brazilian states was detected. All positive animals were aged 96·0% nt (100% aa) sequence identity between the virus sequences in this study and >88·8% nt (>94·4% aa) identity with Newbury1/UK. Our results indicate, for the first time, the occurrence of neboviruses in Brazil as well as in South America, and the first Newbury1-like nebovirus found outside the UK.
诺如病毒属是最近在牛身上发现的属于杯状病毒科的一个新病毒属,与胃肠道疾病有关,如腹泻、厌食和肠道病变,特别是在犊牛中。本研究的目的是调查巴西牛群中诺如病毒的流行情况,并对检测到的病毒株进行系统发育分析。在来自巴西不同州的62头牛的粪便样本中,检测到诺如病毒的流行率为4.8%。所有阳性动物年龄均小于1岁。在本研究中,病毒序列之间的核苷酸(nt)序列同一性为96.0%(氨基酸(aa)序列同一性为100%),与英国纽伯里1株的核苷酸同一性>88.8%(氨基酸同一性>94.4%)。我们的结果首次表明,诺如病毒在巴西以及南美洲存在,并且在英国以外首次发现了类似纽伯里1株的诺如病毒。