• 1 January 1981
    • journal article
    • research article
    • Vol. A132  (1) , 81-96
Abstract
Antisera from inbred mice (C57BL and C3H) improve the specificity of the microimmunofluorescence test. This method was used in the serotyping of 6 strains of C. psittaci of differing origin. In spite of relatively marked cross-reactions, it was possible to distinguish 3 groups: the 1st group consisted of 2 strains of avian origin and the LGV strain 33L; the 2nd group consisted of 2 strains responsible for enzootic abortion in ewes; in the 3rd, only 1 strain was found and this belonged to the meningopneumonitis group. C. psittaci apparently has a more complex antigenic structure than does C. trachomatis.