Hostname: page-component-848d4c4894-wg55d Total loading time: 0 Render date: 2024-05-03T19:44:24.776Z Has data issue: false hasContentIssue false
  • English
  • Français

Changing patterns among the subgroups of strains of Staphylococcus aureus of phage group II in Danish hospitals from 1961–91

Published online by Cambridge University Press:  15 May 2009

N. H. R. Eriksen ,
S. H. Hartzen ,
J. Bangsborg ,
L. P. Andersen ,
V. T. Rosdahl  and
F. Espersen
N. H. R. Eriksen
Affiliation:
Staphylococcus Laboratory, Statens Seruminstitut, Artillerivej 5, 2300 Copenhagen S, Denmark
S. H. Hartzen
Affiliation:
Staphylococcus Laboratory, Statens Seruminstitut, Artillerivej 5, 2300 Copenhagen S, Denmark
J. Bangsborg
Affiliation:
Staphylococcus Laboratory, Statens Seruminstitut, Artillerivej 5, 2300 Copenhagen S, Denmark
L. P. Andersen
Affiliation:
Staphylococcus Laboratory, Statens Seruminstitut, Artillerivej 5, 2300 Copenhagen S, Denmark
V. T. Rosdahl
Affiliation:
Staphylococcus Laboratory, Statens Seruminstitut, Artillerivej 5, 2300 Copenhagen S, Denmark
F. Espersen
Affiliation:
Staphylococcus Laboratory, Statens Seruminstitut, Artillerivej 5, 2300 Copenhagen S, Denmark
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.

During the period 1961–91 a total of 567 635 strains of Staphylococcus aureus from hospitalized patients in Denmark have been characterized according to their antibiotic resistance, site of isolation and phage type. Strains of phage group II (typed by the phages 3A, 3C, 55 and 71) have been analysed further. The occurrence of group II strains was relatively constant (approximately 16%) from 1961 until 1983. Since then the frequency of group II strains increased; in 1991 they accounted for 22.7% of all S. aureus strains isolated. Strains of group II can, on the basis of their phage types, be divided in four subgroups: 3A, 71, 71 + and the ‘rest of group II’. Furthermore, within these groups strains may differ from one another in respect to their sensitivity to phages.

The increased isolation of group II strains during recent years was because of an increase in strains of subgroups 71 + and the ‘rest of group II strains’. In 1991 these two subgroups accounted for 89.7% of all group II strains. Furthermore, an increasing number of group II strains, 71.4% in 1991, was typable only at RTD × 100. The increase in the number of group II strains was even throughout Denmark. All four subgroups of group II have, during the observation period, become more frequently resistant to penicillin and/or tetracycline. Strains typed at 100 × RTD of subgroup 71 + and the ‘rest of group II’ are more frequently antibiotic resistant than the rest of the group II strains.

Strains of the increasing subgroups occurred most often in abscesses.

Type
Research Article
Information
Epidemiology & Infection , Volume 112 , Issue 1 , February 1994 , pp. 81 - 92
Copyright
Copyright © Cambridge University Press 1994

References

REFERENCES

Jessen, O, Rosendal, K, Bülow, P, Faber, V, Eriksen, KR. Changing staphylococci and staphylococcal infections. New Engl J Med 1969; 281: 627–35.CrossRefGoogle ScholarPubMed
Rosendal, K, Bülow, P, Bentzon, MW, Eriksen, KR. Staphylococcus aureus strains isolated in Danish hospitals from January 1st. 1966. to December 31st. 1974. Acta Path Microbiol Scand Sect B 1976; 84: 359–68.Google Scholar
Rosendal, K, Jessen, O, Faber, V, Bentzon, MW. Frequency, phage types and antibiotic resistance of Staphylococcus aureus isolated from blood cultures in Denmark 1975–1981. Scand J Infect Dis 1983; Suppl 41: 19–26.Google ScholarPubMed
Faber, M, Rosdahl, VT. Changing pattern of phage group II Staphylococcus aureus infections. From community to hospital. Scand J Infect Dis. In press.Google Scholar
Blair, JE, Williams, REO. Phage typing of staphylococci. Bull WHO 1961; 24: 771–84.Google Scholar
Parker, MT. The significance of phage-typing patterns in Staphylococcus aureus. In: Eastmon, CSF, Adlam, C, eds. Staphylococci and staphylococcal infections. Vol. 1. London: Academic Press, 1983: 33–62.Google Scholar
Casals, JB, Petersen, OF. Tablet sensitivity testing: a comparison of different methods. Acta Path Microbiol Scand Sect B 1972; 80: 806–16.Google Scholar
Thomsen, VF. Correlation of the plate-dilution method to the agar diffusion method (disc and tablet methods) with a special view to the importance of pre-diffusion. Acta Path Microbiol Scand 1962; 54: 107–20.CrossRefGoogle Scholar
Thomsen, VF. The relation between inoculum and zone size in sensitivity test by the agar diffusion method. With a special view to the importance of prediffusion. Acta Path Microbiol Scand 1964; 61: 303–16.Google Scholar
Ericsson, HM, Sherris, JC. Antibiotic sensitivity testing. Report of an international collaborative study. Acta Path Microbiol Scand Sect B 1971; suppl 217: 1–90.Google ScholarPubMed
Renneberg, J, Rosdahl, VT. Epidemiological studies of penicillin resistance in Danish Staphylococcus aureus strains in the period 1977–1990. Scand J Infect Dis 1992; 24: 401–9.CrossRefGoogle ScholarPubMed
Nordic statistics on medicines, 1984–1986, publication no. 21, Nordic council on medicines, Uppsala 1988.Google Scholar
Nordic statistics on medicines, 1987–1989, publication no. 30, Nordic council on medicines, Uppsala 1990.Google Scholar
Rosdahl, VT, Rosendal, K. Correlation of penicillinase production with phage-type and susceptibility to antibiotics and heavy metals in Staphylococcus aureus. J Med Microbiol 1983; 16: 392–9.Google Scholar
Rosdahl, VT. Localisation of the penicillinase gene in naturally occurring Staphylococcus aureus strains. Acta Pathol Microbiol Immunol Scand Sect B 1985; 93: 383–8.Google Scholar
Friis, H, Bro, F, Mabeck, CE, Vejlsgaard, R. Use of antibiotics in general practice in Denmark in 1987. Scand J Infect Dis 1989; 21: 551–6.Google Scholar
Friis, H, Bro, F, Eriksen, NHR, Mabeck, CE, Vejlsgaard, R. The efficacy of reimbursement on the use of antibiotics. Scand J Health Care. In press.Google Scholar