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.
But some TB infections need to be treated for up to 2 years. Tuberculosis is either latent or active. 1  Latent TB means that you have the TB bacteria in your body, but your body's defenses (immune system) are keeping it from turning into active TB.2  Active TB means that the TB bacteria are growing and causing symptoms.ut some TB infections need to be treated for up to 2 years. Tuberculosis is either latent or active. 1  Latent TB means that you have the TB bacteria in your body, but your body's defenses (immune system) are keeping it from turning into active TB.