Abstract
Many bacterial species are capable of living as biofilm, thought to be the predominant growth mode for bacteria in natural environments. Increasing evidence implicates biofilm as the cause of various human infections. In this study, biofilm formation was demonstrated in group B streptococci (GBS) isolated from different sources in the north Indian community at various pH ranges as well as sugar concentrations and correlated it with different serotypes and surface gene ( c alpha) profiles. The capability to form biofilm was better demonstrated in strains from asymptomatic carriers (pregnant women) compared to symptomatic patients. Quantitatively bacterial adherence with host cells was greater in isolates that produced biofilm under neutral conditions. This study assessed the biofilm formation in clinical isolates of GBS, which is a step towards understanding its role in pathogenesis.
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