Characterization of Escherichia coli strains isolated from urine of secretors and non-secretors.
Strains of Escherichia coli isolated from urine of secretors (242) and non-secretors (121) were compared for their serotype and their ability to express mannose-sensitive (MS) haemagglutinins and mannose-resistant (MR) haemagglutinins and to produce haemolysin. The results of the survey refuted our hypothesis that strains with characteristics associated with virulence, those with MR haemagglutinins and/or haemolysins, would be isolated more frequently from non-secretors. MR haemagglutinins were detected among 36.4% of isolates from secretors and 27.3% of isolates from non-secretors. Haemolysin production was detected among 19.8% of isolates from secretors and 12.5% of isolates from non-secretors. Both MR haemagglutinins and haemolysin were detected only on 12.4% of strains from secretors and 6.7% of strains from non-secretors.
May
S J
SJ
Department of Bacteriology, Medical School, University of Edinburgh, U.K.
Rahat
A
A
Blackwell
C C
CC
MacCallum
C J
CJ
Brettle
R P
RP
Weir
D M
DM
D000017:ABO Blood-Group System; D004926:Escherichia coli / Q000276:immunology / Q000302:isolation & purification* / Q000472:pathogenicity; D004927:Escherichia coli Infections / Q000097:blood* / Q000382:microbiology; D005260:Female; D006388:Hemagglutinins / Q000096:biosynthesis; D006460:Hemolysin Proteins / Q000096:biosynthesis; D006801:Humans; D008358:Mannose / Q000494:pharmacology; D014552:Urinary Tract Infections / Q000097:blood* / Q000382:microbiology; D014774:Virulence
D000017:ABO Blood-Group System; D006388:Hemagglutinins; D006460:Hemolysin Proteins; D008358:Mannose