Phage-Typing Scheme for Escherichia coli O157:H7

Ahmed, Rafiq; Bopp, Cheryl A.; Borczyk, Al; Kasatiya, S. S.

doi:10.1093/infdis/155.4.806

Cited by 131 publications

(103 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Relationship between phage type and VT type All of the VT+ strains examined were typable with the phages described by Ahmed and others (10). Of the 155 strains from sporadic infections, 57 hybridized with both VT1 and VT2 probes, 3 with VT1 only and 95 with VT2 only.…”

Section: Strains From Sporadic Infectionsmentioning

confidence: 81%

“…The scheme uses 16 phages which originally defined 14 phage types. In Canada, the results demonstrated good correlation with epidemiological information in that strains from the same outbreak, or from a patient and incriminated food, belonged to the same phage type (10,11).…”

Section: Introductionmentioning

confidence: 77%

“…To assist in the epidemiological investigation of infections caused by V-T producing E. coli (VTEC) a phage-typing scheme for VT' E. coli 0157 has been developed in Canada (10). The scheme uses 16 phages which originally defined 14 phage types.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phage-typing of Vero-cytotoxin (VT) producingEscherichia coliO157 isolated in the United Kingdom

et al. 1989

View full text Add to dashboard Cite

SUMMARYVero-cytotoxin (VT) producing Escherichia coli serogroup 0157 have been isolated from patients with diarrhoea, haemorrhagic colitis (HC) and haemolytic uraemic syndrome (HUS). A phage-typing scheme developed in Canada has been used to type 155 VT' E. coli 0157 serogroup isolated from sporadic infections in the UK since 1983, and 48 strains from HC or HUS outbreaks. Twelve phage types were identified of which three, types 49, 51 and 52, have not been found in North America. All strains carried a 60 x 106 plasmid and most VT1+VT2+ strains also had a 5 x 106 plasmid coding for colicin D production. The majority of strains producing both VT1 and VT2 belonged to phage type 1, or the related types 4, 8 and 14. Most strains producing only VT2 belonged to types 2 or 49. Four outbreaks were included in the survey. Three had strains of a single phage type while strains from the fourth outbreak were more variable. The distribution of phage types throughout the UK showed no marked geographical variations.

show abstract

Section: Strains From Sporadic Infectionsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 77%

See 1 more Smart Citation

Phage-typing of Vero-cytotoxin (VT) producingEscherichia coliO157 isolated in the United Kingdom

et al. 1989

View full text Add to dashboard Cite

show abstract

“…A phage-typing scheme for VT-producing strains of E. coli of serogroup 0157 has been developed and used in epidemiological investigations of these organisms (Ahmed et al, 1987); 98 strains from Canada or the USA were typable and were assigned to 14 phage types. The phage-typing results of strains from outbreaks and sporadic cases correlated very closely with the epidemiological findings.…”

Section: Epidemiology Of Vtec Infectionsmentioning

confidence: 99%

Vero cytotoxin-producing strains of Escherichia coli

Smith

Scotland

1988

Journal of Medical Microbiology

View full text Add to dashboard Cite

“…Several phenotypic and genotypic schemes have been developed to assist in epidemiological investigations. These include typing of the strains by VT profile [6,[10][11][12], plasmid profile [10,11,13], restriction enzyme digestion and electrophoresis of plasmid [14] and whole cell DNA [15], multilocus enzyme electrophoresis [16,17], phage type [18][19][20] and antibiogram [9,11]. In this study, 0157 VTEC strains and 0111 VTEC strains were characterized which had been isolated from D + HUS-patients as well as from family contacts in three Western European countries.…”

Section: Introductionmentioning

confidence: 99%