1887

Abstract

To study the prevalence pattern and trends in the phenotypic and genetic characteristics of shigellae, we tested 212 isolates isolated from diarrhoeal patients admitted to the Infectious Diseases Hospital, Kolkata, India, from November 2007 to October 2010. Prevalence of spp. was higher in the >5 years age group (69 %) than in children in the <5 years age group (31 %). Serotypes 2a, 3a and untypable isolates of were frequently detected. An increase in the isolation of (15 %) is a novel trend in this region. Fluoroquinolone resistance among serotypes 2a, 3a and other serogroups of shigellae is another evolving trend. The gene was exclusively present in 2a, and the gene was detected in all serogroups. PFGE revealed the grouping of isolates according to their serotypes with approximately 80–100 % similarity, whilst type 2 and were clonal in nature. There was no demarcation in the prevalence of serotypes, antimicrobial resistance or clonality between the two age groups.

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2011-10-01
2019-10-19
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