The story on the effects, if any, of hormonal contraception on the transmission of sexually transmitted infections is not over. Another study by the same researchers is almost completed, and the results either confirming or not the previous study that I cited in my ealier post of Sept 22 should be available in a few months.
Good news about the Pill was announced in October that the Pill protects women from heart disease and stroke and from ovarian and endometrial cancer. See
http://www.asrm.org/Media/Press/whi_ocben_risks.html
More to come when these studies are published.