Seasonal effect on the prevalence of virulence genes of non-O157 Verotoxic E.coli serogroups in faeces of cattle calves
PARUL,
B BIST,
B SHARMA
et al.
Abstract:Calves faecal samples (n=216) were investigated to observe the effect of seasons on the prevalence of serogroups and virulence genes of non-O157 VTEC. A total of 177 (81.94%) E. coli were isolated and 32 (14.81%) were identified as VTEC and serotyping resulted in 13 different non-O157 ‘O’ serogroups. The prevalence of serogroups and their virulence genes was found to be influenced by seasons and highest number were shed in summer (22.22%) followed by rainy (13.88%) and winter season (8.33%), respectively. A hi… Show more
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