Effect of time since exposure to<i>Chlamydia trachomatis</i>on chlamydia antibody detection in women: a cross-sectional study

Chlamydia antibody detection decreases with time since infection and this is most apparent in the first 6 months. In women who have had more than one infection, antibody remained detectable longer for all tests, but this was more marked for the pgp3 ELISA and MIF assay.