Can TB be spread through kissing or having sex?

TB is not spread through sexual intercourse or kissing or other touch. TB bacteria are spread through the air from one person to another. When a person who has TB disease of the lungs or throat coughs, speaks, or sings, TB bacteria are spread in the air. Other people who spend time with the ill person may breathe in these bacteria and become infected. If the person who has TB (before he or she has started taking TB medicines) has stayed with their sexual partner indoors for long time, transmission is possible. You do not need to worry about kissing on the mouth or cheeks.

Taking TB medicines reduces the risk of transmission rapidly. You can have sex while you are treated for TB. At the beginning of the treatment, you may however, be so tired that sex does not interest you. It is good to tell your partner this.

Adolescent tuberculosis