文献类型: 外文期刊
作者: Wang, LY; Marthaler, D; Fredrickson, R; Gauger, PC; Zhang, JQ; Burrough, ER; Petznick, T; Li, GW
作者机构:
关键词: Diarrhoea; Divergent; Genome; Porcine Sapovirus
期刊名称: TRANSBOUNDARY AND EMERGING DISEASES
ISSN: 1865-1674
年卷期: 2020 年 67 卷 1 期
页码:
收录情况: JCR(2021版)
摘要: Porcine sapoviruses (SaVs) are genetically diverse and widely distributed in pig-producing countries. Eight genogroups of porcine SaV have been identified, and genogroup III is the predominant type. Most of the eight genogroups of porcine SaV are circulating in the United States. In the present study, we report detection of porcine SaVs in pigs at different ages with clinical diarrhoea using next-generation sequencing and genetic characterization. All seven cases have porcine SaV GIII strains detected and one pooled case was found to have a porcine SaV GVI strain IA27912-B-2018. Sequence analysis showed that seven GIII isolates were genetically divergent and formed four different lineages on the trees of complete genome, RdRP, VP1 and VP2. In addition, these seven GIII isolates had three different deletion/insertion patterns in an identified variable region close to the 3 ' end of VP2. The GVI strain IA27912-B-2018 was closely related to strains previously detected in the United States and Japan. A 3-nt deletion in VP1 region of GVI IA27912-B-2018 was identified. Our study showed that genetically divergent SaVs of different genogroups are co-circulating in pigs in the United States. Future studies comparing the virulence of these different genogroups in pigs are needed to better understand this virus and to determine if surveillance and vaccine development are needed to monitor and control porcine SaVs.
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