Fig. 5From: Polymorphism of virulence genes and biofilm associated with in vitro induced resistance to clarithromycin in Helicobacter pyloriThe average biofilm development of H. pylori isolates was divided against growth level of day 7. S, B, and R strains were inoculated in BHI broth supplemented with 1% β-cyclodextrin and 0.4% yeast extract. The amount of biofilm produced was measured after day 7 using 0.1% crystal violet staining. Two-sample t-test was used to calculate the p-values and p-value < 0.05 was taken as statistically significant as indicated by “*”Back to article page