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.
About TB. TB is a contagious and often severe airborne disease caused by infection with Mycobacterium tuberculosis (Mtb). TB typically affects the lungs, but it also can affect any other organ of the body.It is usually treated with a regimen of drugs taken for 6 months to 2 years depending on the type of infection.For someone to develop active TB disease, the following two events must take place:B typically affects the lungs, but it also can affect any other organ of the body. It is usually treated with a regimen of drugs taken for 6 months to 2 years depending on the type of infection. For someone to develop active TB disease, the following two events must take place: