Progesterone-Only Contraception Pill may Increase Chlamydia Risk

High levels of progesterone cuts down the Interferon epsilon protein levels by as much as 10 times, lowering the body's natural immune response to infection and thus increasing the risk of a woman contracting Chlamydia. The study has been published in the journal Science.

"Cytokines are normally produced after you are exposed to an infection. [Interferon epsilon] is there to prime the system to have protective immunity before you even get infected. Since this protein boosts female reproductive tract immune responses, it's likely, although we haven't addressed it directly, that this finding will be important for other infectious diseases like HIV and HPV", Professor Hertzog said.

Source: Medindia