Determination of serotype-specific antibodies to Chlamydia trachomatis using a microimmunofluorescence method.

Serotype-specific antibodies for Chlamydia trachomatis were determined with a microimmunofluorescence method. The sera were obtained from 90 primary or secondary infertile women admitted for examination and from 180 control women admitted for interruption. Positive C. trachomatis serotype-specific antibody titres were found in 40 of the infertile women (44.4%) and 44 of the controls (24.4%). On the basis of determination of the serotype-specific antibodies, the prevalence of I, D and G serotypes was estimated.