Hostname: page-component-745bb68f8f-5r2nc Total loading time: 0 Render date: 2025-01-11T21:53:57.809Z Has data issue: false hasContentIssue false
  • English
  • Français

The virulence of T-mycoplasmas, isolated from various animal species, assayed by intramammary inoculation in cattle

Published online by Cambridge University Press:  15 May 2009

C. J. Howard ,
R. N. Gourlay  and
J. Brownlie
C. J. Howard
Affiliation:
A.R.C. Institute for Research on Animal Diseases, Compton, Newbury, Berkshire
R. N. Gourlay
Affiliation:
A.R.C. Institute for Research on Animal Diseases, Compton, Newbury, Berkshire
J. Brownlie
Affiliation:
A.R.C. Institute for Research on Animal Diseases, Compton, Newbury, Berkshire
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.

The virulence of T-mycoplasmas for cattle was tested by examining their ability to produce mastitis in cows. It was found that both virulent and avirulent strains of T-mycoplasmas can be isolated from cattle. All of four strains from pneumonic calf lungs and a strain from a case of bovine kerato-conjunctivitis caused mastitis but only two of four strains isolated from the urogenital tract of cows were virulent. None of the human, simian or canine T-mycoplasmas examined were able to cause mastitis in cattle. However, a bovine strain was found to be capable of causing mastitis in goats. Virulent and avirulent strains from the same and different species contain common antigens detected by the metabolic inhibition test. Pathogenicity could not be shown to be characteristic of any particular serotype. The possibility is raised of some species barrier being responsible for the inability of non-bovine strains to infect cattle.

Type
Research Article
Information
Journal of Hygiene , Volume 71 , Issue 1 , March 1973 , pp. 163 - 170
Copyright
Copyright © Cambridge University Press 1973

References

REFERENCES

Biberfield, G. (1971). Immunological, Epidemiological and Ultrastructural Studies of Mycoplasma Pneumoniae. Stockholm, Tryckeri Balder A. B.Google Scholar
Ford, D. K. (1967). Relationships between mycoplasma and the etiology of nongonococcal urethritis and Reiter's syndrome. Annals of the New York Academy of Sciences 143, 501.CrossRefGoogle ScholarPubMed
Ford, D. K. (1970). The role of mycoplasmas in genital tract infections of man. In The Role of Mycoplasmas and L-forms of Bacteria in Disease, p. 137. Ed. Sharp, J. T.. Springfield, Illinois: Charles C. Thomas.Google Scholar
Gourlay, R. N. & Domermuth, C. H. (1967). Growth inhibition and ‘neutrahsation’ of Mycoplasma mycoides by immune bovine serum: I. Development of a liquid medium test. Annals of the New York Academy of Sciences 143, 325.CrossRefGoogle Scholar
Gourlay, R. N., Howard, C. J. & Brownlie, J. (1972). The production of mastitis in cows by the intramammary inoculation of T-mycoplasmas. Journal of Hygiene 70, 511.CrossRefGoogle ScholarPubMed
Gourlay, R. N., Mackenzie, A. & Cooper, J. E. (1970). Studies of the microbiology and pathology of pneumonic lungs of calves. Journal of Comparative Pathology 80, 575.CrossRefGoogle ScholarPubMed
Gourlay, R. N. & Thomas, L. H. (1969). The isolation of large colony and T-strain mycoplasmas from cases of bovine kerato-conjunctivitis. Veterinary Record 84, 416.CrossRefGoogle ScholarPubMed
Gourlay, R. N. & Thomas, L. H. (1970). The experimental production of pneumonia in calves by the endobronchial inoculation of T-mycoplasmas. Journal of Comparative Pathology 80, 585.CrossRefGoogle ScholarPubMed
Howard, C. J. & Gourlay, R. N. (1972). Serology of bovine T-mycoplasmas. British Veterinary Journal, 128, xxxvii.Google ScholarPubMed
Klein, K. O., Buckland, D. & Finland, M. (1969). Colonisation of new-born infants by mycoplasmas. New England Journal of Medicine 280, 1025.CrossRefGoogle Scholar
Purcell, R. H., Chanock, R. M. & Taylor-Robinson, D. (1969). Serology of the mycoplasmas of man. In The Mycoplasmatales and the L-phase of Bacteria, p. 221. Ed. L., Hayflick. Amsterdam: North Holland Publishing Company.Google Scholar
Purcell, R. H., Taylor-Robinson, D., Wong, D. & Chanock, R. M. (1966). Colour test for the measurement of antibody to T-strain mycoplasmas. Journal of Bacteriology 92, 6.CrossRefGoogle ScholarPubMed
Shepard, M. C. (1969). Fundamental biology of the T-strains. In The Mycoplassnatales and the L-phase of Bacteria, p. 49. Ed. L. Hayflick. Amsterdam: North Holland Publishing Company.Google Scholar
Taylor-Robinson, D. (1971). Mycoplasmas and their pathogenicity. Proceedings of the Royal Society of Medicine 64, 31.CrossRefGoogle ScholarPubMed
Taylor-Robinson, D., Haig, D. A. & Williams, M. H. (1967). Bovine T-strain mycoplasma. Annals of the New York Academy of Sciences 143, 517.CrossRefGoogle ScholarPubMed
Taylor-Robinson, D., Martin-Bourgon, C., Watanabe, T. & Addey, J. P. (1971). Isolation of T-mycoplasmas from dogs and squirrel monkeys: Biological and serological comparison with those isolated from man and cattle. Journal of General Microbiology 68, 97.CrossRefGoogle ScholarPubMed
Taylor-Robinson, D., Thomas, M. & Dawson, P. L. (1969). The isolation of T-mycoplasmas from the urogenital tract of bulls. Journal of Medical Microbiology 2, 527.CrossRefGoogle ScholarPubMed
Thomas, L. H. & Smith, G.S. (1972). Distribution of mycoplasmas in the non-pneumonic bovine respiratory tract. Journal of Comparative Pathology 82, 1.CrossRefGoogle ScholarPubMed