Figure 4

Serum resistance and biofilm forming propensities of 11 E. coli isolates. Pooled NHS was inoculated with overnight LB culture in 1:10 ratio. Bacteria were enumerated at 0 and 3 h of incubation at 37 °C, and percentage survival in serum was calculated. For biofilm assay, bacteria were grown in M63 media and specific biofilm formation (SBF) was calculated. Error bars represent standard error (SE).