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首页> 外文期刊>Epidemiology and Infection >Evidence for interstate transmission and increase in prevalence of bovine group B rotavirus strains with a novel VP7 genotype among diarrhoeic calves in Eastern and Northern states of India
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Evidence for interstate transmission and increase in prevalence of bovine group B rotavirus strains with a novel VP7 genotype among diarrhoeic calves in Eastern and Northern states of India

机译：在印度东部和北部各州的腹泻犊牛中，具有新的VP7基因型的牛B轮状病毒株的州际传播和患病率增加的证据

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摘要

During a surveillance study (2003-2005) in a cattle market in Kolkata city, state of West Bengal, Eastern India, 34 (13·0%) of 260 calves with diarrhoea were positive for group B rotaviruses (GBR) by RNA electrophoresis in polyacrylamide gels. Analysis of the partial VP7 gene sequence of 28 of the 34 GBR strains revealed maximum identities (97·7-99·5 % at nucleotide level and 97·8-100% at amino-acid level) with the novel bovine GBR 'Kolkata strains' reported in an earlier surveillance study (1·5%, n = 192, 2001-2002) from the same cattle market, and shared low identities of 73·7-78·9% and 80·8-89·6%; 62·6-66·2% and 59·8-65·4%; 58·9-62·2% and 48·6-54·9% at nucleotide and amino-acid level with other bovine, human, and murine GBR. The GBR-infected calves were traced to districts in neighbouring states of West Bengal. Therefore, the present study reports a rapid increase in prevalence (130% in 2003-2005 against 1·5% in 2001-2002) of novel GBR strains among calves with diarrhoea, and provides evidence for interstate transmission of GBR.
机译：在印度东部西孟加拉邦加尔各答市的一个牛市场进行的一项监测研究（2003年至2005年）中，通过腹泻RNA电泳，在260例腹泻小牛中，有34例（13·0％）的B组轮状病毒（GBR）呈阳性。聚丙烯酰胺凝胶。分析34个GBR菌株中28个的部分VP7基因序列，发现与新型牛GBR'Kolkata菌株的最大同一性（核苷酸水平为97·7-99·5％，氨基酸水平为97·8-100％）在相同的牛市上进行的一项较早的监视研究中（1·5％，n = 192，2001-2002）报道，并且认同度较低，分别为73·7-78·9％和80·8-89·6％； 62·6-66·2％和59·8-65·4％；与其他牛，人和鼠类GBR的核苷酸和氨基酸水平分别为58·9-62·2％和48·6-54·9％。感染了GBR的牛犊被追溯到西孟加拉邦各州的地区。因此，本研究报告了腹泻犊牛中新型GBR菌株的流行率迅速增加（2003-2005年为130％，2001-2002年为1·5％），并为跨州传播GBR提供了证据。

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