In this final paper, the main topic is tuberculosis, a contagious disease that occurs in 90% of cases in the lungs. In addition to the lungs, it affects other organs and tissues. It is caused by bacteria from the Mycobacterium tuberculosis complex that are microscopic in the form of sticks. Tuberculosis is one of the top ten causes of death in the world and the leading cause of death from a single pathogen. Infection is transmitted through the air, by inhaling bacteria that an already infected patient blows into the air by sneezing, coughing and talking. Immunocompromised people, the elderly, malnutrition and contaminated indoor air, or poorer living standards, have a high risk of tuberculosis. BCG is a preventive vaccine that is mandatory in the Republic of Croatia, which is usually received in the first 30 days after birth. The most common symptoms are a prolonged cough and fever, as well as pale and dry skin. Today, we have several available methods for diagnosing tuberculosis, such as skin tests, blood tests, cultivation and molecular tests. The nurse and the community nurse play an essential role in the health care and nursing of the patient and meet with various tasks and interventions aimed at eliminating the symptoms and causes of the disease, improving health and ultimately healing. Tuberculosis is a chronic infectious disease, so one of the most important tasks of a nurse is to prevent the spread of the infection and to educate patients about the therapy that is used for about 6 to 9 months. It is important to use the therapy continuously and completely until the end of the treatment, because by interrupting it, resistant forms can develop that are later more difficult and expensive to treat.