The document discusses pulmonary tuberculosis, caused by the Mycobacterium tuberculosis bacterium. It is an airborne infectious disease that primarily affects the lungs but can spread to other organs. The Philippines has a high burden of tuberculosis, ranking 9th globally. Risk factors include old age, poor health, HIV/AIDS, homelessness, and drug-resistant strains. Symptoms include coughing with mucus or blood, sweating, fever, and weight loss. Diagnosis involves tests like chest x-rays, sputum examination, and CT scans. Prevention involves vaccination, adequate nutrition, rest, and treatment of active cases with a combination of rifampicin, isoniazid, pyrazinamide, and ethamb