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Classification of Mycobacterium avium and related opportunist mycobacteria met in England and Wales

Published online by Cambridge University Press:  15 May 2009

K. J. Birn
Affiliation:
Central Veterinary Laboratory, Weybridge
W. B. Schaefer
Affiliation:
National Jewish Hospital, Denver, Colorado
P. A. Jenkins
Affiliation:
Tuberculosis Reference Laboratory, Cardiff
T. Szulga
Affiliation:
Tuberculosis Reference Laboratory, Cardiff
J. Marks
Affiliation:
Tuberculosis Reference Laboratory, Cardiff
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A broad division of the opportunist mycobacteria has been defined under the name of ‘dysgonic nonchromogens’. The classification was attempted of 68 strains isolated from man in England and Wales, of which 54 at least appeared to be clinically significant. The means used were chiefly drug sensitivity, arylsulphatase activity, specific agglutination, lipid analysis and pathogenicity tests on fowls. On the results, a new definition is proposed for the species M. avium, extending beyond the boundaries of pathogenicity for birds, and a scheme put forward for its division into two types. In addition, two provisional new species and a group of ‘para-avian’ bacilli have been recognized and defined. The remaining 16 strains included six with ‘Battey’ serotypes but otherwise could not be classified. The need for standardization of fowl tests has been noted together with their diminished importance in the field of classification with the emergence of new in vitro methods of examination.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1967

References

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