If you have active TB disease of the lungs or throat, you are probably infectious. You will need to stay home from work or school, so you don’t spread TB bacteria to other people. When people are in your home, you will need to wear a mask over your mouth and nose to prevent spreading the disease.

After taking the medicine for a few weeks, you will feel better and may no longer be infectious to others. A TB Clinic nurse will tell you when you can return to work or school or visit with friends.