With respect to hormonal contraception, there’s a very interesting and hard to explain set of data that’s out there. Oral contraception use is actually associated with a two-fold increase in the prevalence of Chlamydia. On the other hand, oral contraception use has been associated in case control studies with symptomatic PID. How can that be? We also know from the Scandinavian study that Salpingitis, this laparoscopic way of looking at PID, is actually more mild among women using oral contraceptives. This suggested to us a possible way to understand these data.