1887

Abstract

SUMMARY: A brief review of group G streptococci and their typing is given with particular reference to canine strains. Two of the Australian type strains of Simmons & Keogh (1940) were found to be in the group phase and useless for comparative purposes. Four types Kennett, Maxie, Airedale and R 51/755 were clearly defined in addition to the Australian types Harrison and Cuthell by reciprocal absorption tests using slide agglutination. Fifty-four other strains of which 35 were of animal and 19 of human origin were examined for type. Of the 38 strains from animal sources, 33 belonged to one of the two types Kennett or Maxie, strains of which came exclusively from animal sources. Six of the human strains and one of the animal ones were untyped.

Type R 51/755 which had been found previously by Maxted (1949) to possess the M28 antigen owed its type-specificity entirely to this antigen and this was not found to be present in any of the other types.

The substances responsible for type-specificity in types Kennett, Maxie, and Airedale differed from those of types Harrison and Cuthell and like that of type R 51/755 appeared to be protein in nature. The type-specific substances of types Airedale and Maxie had exactly the same characters as the M28 antigen in being sensitive to peptic but resistant to tryptic digestion. The protein antigen of type Kennett differed from the other three protein type-specific substances in showing only moderate resistance to tryptic digestion.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-17-3-750
1957-12-01
2022-05-21
Loading full text...

Full text loading...

/deliver/fulltext/micro/17/3/mic-17-3-750.html?itemId=/content/journal/micro/10.1099/00221287-17-3-750&mimeType=html&fmt=ahah

References

  1. Bliss E. A. 1937; Studies upon minute haemolytic Streptococci. J. Bact 33:625
    [Google Scholar]
  2. Griffith F. 1926; Types of haemolytic streptococci in Scarlet fever. J. Hyg., Camb 25:385
    [Google Scholar]
  3. Hare T., Fry R. M. 1938a; Preliminary observations of infection in dogs by β-haemolytic streptococci. Vet. Rec 50:213
    [Google Scholar]
  4. Hare T., Fry R. M. 1938b; Clinical observations on β-haemolytic infections of dogs. Vet. Rec 50:1537
    [Google Scholar]
  5. Hare R., Lancefield R. A. 1935; The serological differentiation of pathogenic and non-pathogenic strains of haemolytic streptococci from parturient women. J. exp. Med 61:335
    [Google Scholar]
  6. Lancefield R. A. 1941; Specific relationship of cell composition to biological activities of haemolytic streptococci. Harvey Lect 36:261
    [Google Scholar]
  7. Lancefield R. A. 1943; Studies on the antigenic composition of group Ahaemolytic streptococci. J. exp. Med 78:465
    [Google Scholar]
  8. Laughton N. 1948; Canine β-haemolytic streptococci. J. Path. Bact 60:471
    [Google Scholar]
  9. Laughton N., Larin N. M. 1954; Interaction of the natural host and the canine hepatitis virus on the infectivity of group G streptococci. Nature; Lond.: 17384
    [Google Scholar]
  10. Maxted W. R. 1949; Occurrence of the ‘M’ substance of type 28 group A streptococci of Lancefield groups B, C and G. J. gen. Microbiol 3:1
    [Google Scholar]
  11. Minett F. C., Ellis A. A. B. 1940; Streptococcal infections in dogs. Vet. J 96:438
    [Google Scholar]
  12. Perry K. D., Briggs C. A. E. 1955; A common type antigen in streptococci of groups D and E. J. Path. Bact 70:546
    [Google Scholar]
  13. Sharpe E. M. 1952; Occurrence of a common type antigen in streptococci of groups D and N. J. gen. Microbiol 7:192
    [Google Scholar]
  14. Simmons R. T., Keogh E. V. 1940; The physiological characters and serological types of haemolytic streptococci of groups B, C and G from human sources. Aust. J. exp. Biol. med. Sci 18:151
    [Google Scholar]
  15. Stableforth A. W. 1932; Studies in Bovine Mastitis. J. comp. Path 45:185
    [Google Scholar]
  16. Stableforth A. W. 1938; Streptococcal infections of animals and their treatment. Vet. Rec 50:1203
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-17-3-750
Loading
/content/journal/micro/10.1099/00221287-17-3-750
Loading

Data & Media loading...

Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error