The presence of Chlamydia antibodies in vaginal or cervical samples has not been studied extensively in this context before, although results of an early study by Brunham et al. [18] and Agrawal et al. [19] and unpublished data (Morré, personal communication) have shown that IgA can be detected in cervical swab material and in women with a current Chlamydia infection. The gene discussed is CD79A; the disease is chlamydia infectious disease.