However, if your visa says that it is valid indefinitely, you should apply for a new visa, or travel under the Visa Waiver Program (VWP) if eligible as all indefinitely-valid visas are now obsolete. See further down this page.
Actually, no. You can't get TB by touching an infected person. Tuberculosis germs don't stick to clothing or skin; they hang out in the air. You also can't get TB by: 1  Giving an infected person a hug or a kiss. 2  Using the same toothbrush.3  Eating or drinking after an infected person.ou can't get TB by touching an infected person. Tuberculosis germs don't stick to clothing or skin; they hang out in the air. You also can't get TB by: 1  Giving an infected person a hug or a kiss. 2  Using the same toothbrush.
With latent TB: 1  You cannot spread TB to other people. 2  In some people, the bacteria can become active. If this happens, you may become sick, and you can pass the TB germs to someone else. 3  Even though you do not feel sick, you need to take medicines to treat latent TB for 6 to 9 months. This is the only way to make sure all of the TB bacteria in your body are killed. When you have active TB, you may feel sick or have a cough, lose weight, feel tired, or have a fever or night sweats.