FIG. 2.

Serum survival of clinical (solid bars) and environmental (open bars) genotypes of V. vulnificus exposed to normal human serum for 1 h with or without additions of ferric ammonium citrate. Each bar represents the average survival in CFU for the five strains tested of each genotype. Columns marked “Initial Inocula” represent cells grown in HI prior to serum exposure. Asterisks denote significant differences in survivability between genotypes based on results of two-way ANOVA with Bonferroni posttests (***, P < 0.001).