I have read this article which states Chlamydia Pneumoniae can be transmitted to the genital area through oral sex where it then advances to Chlamydia Trachomatis (www.medicalnewstoday.com/articles/102418). I have not found any other sources about this being able to happen. Is it possible for the disease C. Pneumoniae to progress to C. Trachomatis through oral sex?