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Tuberculosis (TB) is a bacterial infection caused by Mycobacterium tuberculosis. There are different types of tuberculosis based on factors such as the location of the infection, the progression of the disease, and the immune status of the individual. Here are some common types of tuberculosis: **1. Pulmonary Tuberculosis:** Pulmonary tuberculosis is the most common form of TB. It primarily affects the lungs and is characterized by symptoms such as coughing (sometimes with blood-tinged sputum), chest pain, fatigue, weight loss, and fever. It can be further categorized into: - **Primary Pulmonary Tuberculosis:** This occurs when a person is initially infected with Mycobacterium tuberculosis. It often presents with the formation of Ghon's complex and may lead to latent tuberculosis or active disease. - **Post-primary (Reactivated) Pulmonary Tuberculosis:** This occurs when the infection reactivates in an individual who had previously been exposed to the bacteria. It can c