L. Siegfried et al., SERUM RESPONSE OF ESCHERICHIA-COLI STRAINS CAUSING DYSPEPSIA AND URINARY-TRACT INFECTION - RELATION TO ALPHA-HEMOLYSIN PRODUCTION AND O-TYPE, Infection and immunity, 63(11), 1995, pp. 4543-4545
A total of 109 alpha-hemolytic and 104 nonhemolytic Escherichia coli i
solates from children,vith dyspepsia and urinary tract infections were
investigated for resistance to the bactericidal activity of human ser
um. A significantly higher proportion of serum resistance was found in
alpha-hemolytic E. call isolates than in nonhemolytic isolates (P < 0
.01). An association between the titer of alpha-hemolysin produced and
serum resistance was found.