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. 2006 Apr;117(4):482–493. doi: 10.1111/j.1365-2567.2006.02323.x

Figure 1.

Figure 1

Survival of Escherichia coli K1 strains in adult human sera. OmpA+ (a) and OmpA– (b)E. coli K1 strains grown overnight (postexponential) were subjected to serum bactericidal assays using adult human sera either untreated (NHS), heat-inactivated (HI-NHS), EGTA-treated (EGTA + NHS), incubated at 50° for 30 min, or preincubated with anti-C1q antibody. (c) In separate experiments, the bacteria were subjected to serum bactericidal assays using C8-deficient serum at a final concentration of 40%. The results are presented as means of at least three individual experiments and are expressed as relative survival with the survival of E. coli at 0 min being taken as 100%.