As a public health professional with expertise in infectious diseases, I can tell you that while it is possible to have sexual contact with a partner who has chlamydia and not get infected, the risk of transmission is high if proper precautions are not taken. Chlamydia is a bacterial infection that is easily spread through sexual contact, and it can be passed from one partner to another even in a monogamous relationship. The use of barrier methods such as condoms can significantly reduce the risk of transmission, but it does not eliminate it entirely. It's important to get tested regularly and to communicate openly with your partner about sexual health to prevent the spread of chlamydia and other sexually transmitted infections (STIs). read more >>

While it is possible to have vaginal, oral, or anal sex with an infected partner and not get infected, it's unlikely. For more information, check out "the prevention" link. It seems like you are asking about whether chlamydia or gonorrhea can be spread from one partner to another in a monogamous relationship.read more >>