A rapid immunoperoxidase assay for the detection of specific IgG antibodies to Chlamydia trachomatis

A technique, using indirect immunoperoxidase antibody (IPA), was developed for the detection of IgG antibody to Chlamydia trachomatis. The IPA technique employs glass slides with air-dried and acetone-fixed C trachomatis infected cells, which can be stored at -70 degrees C and used for several months. Antibody titres detected by IPA were comparable to those detected by the indirect fluorescent antibody technique.