Home CONTACT Acta Virologica 2017 Acta Virologica Vol.61, No.1, p.77-85, 2017

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Acta Virologica Vol.61, No.1, p.77-85, 2017

Title: Zooanthroponotic transmission of rotavirus in Haryana State of Northern India
Author: P. CHOUDHARY, P. MINAKSHI, K. RANJAN, B. BASANTI

Abstract:

Rotaviruses are the major cause of severe gastroenteritis and mortality in young children and animals. Due to segmented nature of dsRNA genome and wide host range, vast genetic and antigenic diversity exists amongst different isolates of rotaviruses. A total of 230 fecal ovine and caprine samples collected from organized farms and villages in Haryana were screened for rotavirus detection. Samples were screened by latex agglutination test and RNA-PAGE followed by RT-PCR and nucleic acid sequencing. The latex agglutination test showed 25 newborn lamb and 4 kid fecal samples positive for rotavirus. However, RNA-PAGE showed only 9 lamb fecal samples positive for rotavirus. All the samples were subjected to RT-PCR employing vp4 and vp7 gene specific primers of group A rotavirus of ovine, bovine and human origin. Only two samples from lamb (Sheep18/Hisar/2013 and Sheep22/Hisar/2013) showed vp4 and vp7 gene specific amplification with human group A rotavirus (GAR) specific primer. However, they did not show any amplification with ovine and bovine rotavirus specific primers. The nucleotide as well as deduced amino acid sequence analysis of vp4 gene of these isolates showed >98/97% and vp7 gene >95/94% nt/aa identity with human GAR from different regions of the world. Based on nucleotide similarity search, Sheep18/Hisar/2013 and Sheep22/Hisar/2013 isolates were genotyped as G1P[8] and G1P[4].

Phylogenetic analysis also confirmed that these isolates were clustered closely with human rotaviruses from different regions of the world. Earlier, higher prevalence of human rotaviruses was reported from the sample collecting area. The amplification of ovine samples with human rotavirus gene specific primers, sequence identity and phylogenetic analysis strongly suggests the zoonotic transmission of human GAR to sheep.



Keywords: ovine rotavirus; RNA-PAGE; RT-PCR; latex agglutination test; vp4 gene; vp7 gene
Published online: 28-Feb-2017
Year: 2017, Volume: 61, Issue: 1 Page From: 77, Page To: 85
doi:10.4149/av_2017_01_77


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