How can you prevent yourself from Tuberculosis(TB) To avoid getting an active TB infection: Do not spend long periods of time in stuffy, enclosed rooms with anyone who has active TB until that person has been treated for at least 2 weeks. Although most bacterial infections are treated with antibiotics over the course of a week or two. Patients diagnosed with TB take one or more medications for six to nine months. High-dose antibiotics can harm the liver. injury symptoms, such as:
