Ozyurek ES, et al. - Researchers aimed at determining the role of anti-human heat shock protein 60 (hHsp60) antibody positivity in the pathogenesis of ectopic pregnancy, following Chlamydia trachomatis (CT) infection. In CT IgG(+) ectopic pregnancies, immunity to hHsp60 was less common compared to CT IgG(+) fertile subjects without a history of ectopic pregnancies. Findings thereby suggested that hHsp60 seropositivity could reduce the probability of an ectopic gestation in subjects with previous CT infections.