Abstract |
Serotyping of 1918 Escherichia coli strains isolated in significant cell numbers from the urine of patients with urinary tract infections (UTI) revealed the presence of 117 O6 strains. The K antigens were identified by means of K-specific phages and serological methods. The phages used included a K1 phage pool (phi 1, A-E) and the separate phages phi 2, phi 5, phi 7, phi 12 and phi 13. The presence of H antigens, type 1 fimbriae formation, hemolysin production and mannose-resistant hemagglutination (MRHA) ability with human A, sheep, calf and pig erythrocytes were also analyzed. Six different MRHA types were defined and discussed in relation to the O6:K:H serotype. Remarkably, E. coli O6 strains were found to possess a whole arsenal of virulence factors ( K antigens, MRHA, hemolysin). The most common serotypes - O6:K2:H1/H- (26), O6:K5:H1/H- (35) and O6:K13:H1/H- (20) - differed from each other in some cases in both MRHA type and hemolysin production.
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Authors | G Zingler, G Schmidt, I Orskov, F Orskov, U Falkenhagen, G Naumann |
Journal | Zentralblatt fur Bakteriologie : international journal of medical microbiology
(Zentralbl Bakteriol)
Vol. 274
Issue 3
Pg. 372-81
(Dec 1990)
ISSN: 0934-8840 [Print] Germany |
PMID | 2090152
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antigens, Bacterial
- Antigens, Surface
- Hemolysin Proteins
- K antigens
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Topics |
- Antigens, Bacterial
(analysis)
- Antigens, Surface
(analysis)
- Escherichia coli
(classification, immunology, metabolism)
- Escherichia coli Infections
(microbiology)
- Hemagglutination
- Hemolysin Proteins
(biosynthesis)
- Humans
- Serotyping
- Urinary Tract Infections
(microbiology)
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