PREVENTION OF TUBERCULOSIS

Tuberculosis is transmitted by aerial route from an infected patient t o a healthy subject and is facilitated when the receiver is immunologi cally sensitive. Even when the risk of transmission is low, measures s hould be taken to prevent emission of bacilli, their suspension in air and inhalation by sensitive subjects, especially immunodeficient subj ects. Surveillance of hospital staff and preventive antituberculosis r egimens are generally recommanded, but often quite controversial.