Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-27T14:39:49.153Z Has data issue: false hasContentIssue false
  • English
  • Français

Numerical index of the discriminatory ability of biotyping for strains of Salmonella typhimurium and Salmonella paratyphi B

Published online by Cambridge University Press:  15 May 2009

D.C Old  and
R.M. Barker
D.C Old
Affiliation:
Department of Medical Microbiology, The University of Dundee Medical School, Ninewells Hospital, Dundee DD1 9SY
R.M. Barker
Affiliation:
Department of Medical Microbiology, The University of Dundee Medical School, Ninewells Hospital, Dundee DD1 9SY
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

An index of discrimination was used to assess the discriminatory power of biotyping for salmonellas of selected serotypes. Three collections of phage-typed strains of Salmonella typhimurium and Salmonella paratyphi B, previously tested for biotype, were examined. The results established that the discrimination index was high when full biotyping alone was used for differentiation of strains from international series. When biotyping was combined with phage typing, the discrimination achieved was greater than for either method used alone. These findings confirm that biotyping affords excellent discrimination of strains of S. typhimurium and S. paratyphi B and indicate that the results obtained from biotyping can be interpreted with confidence.

Type
Research Article
Information
Epidemiology & Infection , Volume 103 , Issue 3 , December 1989 , pp. 435 - 443
Copyright
Copyright © Cambridge University Press 1989

References

REFERENCES

1.Wachsmuth, K.Molecular epidemiology of bacterial infections examples of methodology and of investigations of outbreaks. Rev Infect Dis 1986; 8: 682–92.CrossRefGoogle ScholarPubMed
2.Hawkey, PM.Molecular methods for the invesigation of bacterial cross-infection. J Hosp Infect 1987; 9: 211–18.CrossRefGoogle Scholar
3.Anderson, ES, Williams, REO.Bacteriophage typing of enteric pathogens and staphylococci and its use in epidemiology. J Clin Pathol 1956; 9: 94–127.CrossRefGoogle ScholarPubMed
4.Hunter, PR, Gaston, MA.Numerical index of the discriminatory ability of typing systems: an application of Simpson's index of diversity. J Clin Microbiol 1988; 26: 2465–6.CrossRefGoogle ScholarPubMed
5.Duguid, JP, Anderson, ES, Alfredsson, GA, Barker, R, Old, DC.A new biotyping scheme for Salmonella typhimurium and its phylogenetic significance. J Med Microbiol 1975; 8: 149–66.CrossRefGoogle ScholarPubMed
6.Anderson, ES, Ward, LR, De Saxe, MJ, Old, DC, Barker, R, Duguid, JP.Correlation of phage type, biotype and source in strains of Salmonella typhimurium. J Hyg 1978; 81: 203–17.CrossRefGoogle ScholarPubMed
7.Barker, RM, Old, DC.Biotyping and colicine typing of Salmonella typhimurium strains of phage type 141 isolated in Scotland. J Med Microbiol 1979; 12: 265–76.CrossRefGoogle ScholarPubMed
8.Barker, RM, Old, DC.Biotypes of strains of Salmonella typhimurium of phage types 49, 204 and 193. J Med Microbiol 1980; 13: 369–71.CrossRefGoogle Scholar
9.Barker, RM, Old, DC.The usefulness of biotyping in studying the epidemiology and phylogeny of salmonellae. J Med Microbiol 1989; 29: 81–8.CrossRefGoogle ScholarPubMed
10.Barker, RM, Old, DC, Sharp, JCM.Phage type/biotype groups of Salmonella typhimurium in Scotland 1974–6: variation during spread of epidemic clones. J Hyg 1980; 84: 115–25.Google ScholarPubMed
11.Old, DC, Barker, RM.Persistent and transient clones of Salmonella typhimurium of phage type 141 recognized by biotyping. Epidemiol Infect 1989; 102: 113–18.CrossRefGoogle ScholarPubMed
12.Barker, RM, Kearney, GM, Nicholson, P, Blair, AL, Porter, RC, Crichton, PB.Types of Salmonella paratyphi B and their phylogenetic significance. J Med Microbiol 1988; 26: 285–93.CrossRefGoogle ScholarPubMed
13.Callow, BR.A new phage typing scheme for Salmonella typhimuriurn. J Hyg 1959; 57: 346–59.CrossRefGoogle Scholar
14.Anderson, ES. The phage typing of salmonellae other than S. typhi. In: van Oye, E. ed. The world problem of salmonellosis. The Hague: Dr W junk. 1964; 89–110.CrossRefGoogle Scholar
15.Anderson, ES, Ward, LR, de Saxe, MJ, de Sa, JDH.Bacteriophage typing designations of Salmonella typhimurium. J Hyg 1977; 78: 297–300.CrossRefGoogle ScholarPubMed
16.Felix, A, Callow, BR.Typing of paratyphoid B bacilli by means of Vi bacteriophage. Br Med J 1943; 2: 127–30.CrossRefGoogle Scholar
17.Felix, A, Callow, BR.Paratyphoid-B 6-phage typing. Lancet 1951; 2: 10–14.CrossRefGoogle Scholar
18.Simpson, EH.Measurement of diversity. Nature 1949; 163: 688.CrossRefGoogle Scholar
19.Kauffmann, F.The bacteriology of Enterobacteriaceae. Copenhagen: Munksgaard. 1966; 400.Google Scholar
20.Kristensen, M, Bojlén, K, Faarup, C.Bakteriologisk-epidemiologiske Erfaringer om Infektioner med Gastroenteritisbaciller af Paratyfusgruppen. Bibliot f laeger 1937; 129: 310–39.Google Scholar
21.Hansen, AC.Die beim Haüsgeflügel in Danemark festgestellten Salmonellatypen. Zentralbl Bakteriol (Orig) 1942; 149: 222–35.Google Scholar
22.Harhoff, N.Gastroenteritisbaciller af Salmonellagruppen i Danmark. Copenhagen: Nyt Nordisk Forlag - Arnold Busck, 1948; 243.Google Scholar
23.Palmer, SR, Rowe, B.Trends in salmonella infections. PHLS Microbiol Digest 1986; 3: 2–5.Google Scholar