Influence of centrifugation on the infectivity of Chlamydia pneumoniae IOL-207.

The influence of centrifugation on the infectivity of Chlamydia pneumoniae IOL-207 was compared with seven serovars of C. trachomatis biovar trachoma, the three serovars of C. trachomatis biovar lymphogranuloma and four C.

An immunofluorescence assay in microwell plate (IFA) for detecting serum antibodies to Chlamydia pneumoniae.

An indirect immunofluorescence assay using a 96 microwell cell culture plate (IFA) was developed for the detection of antibodies to C. pneumoniae. The results obtained by IFA on 230 sera of healthy subjects were compared with those obtained with the microimmunofluorescence test.