1. Tuberculosis — Cause: Caused by bacteria that can spread by air, dust or sputum.
Treatment: BCG vaccine, antibiotic — Streptomycin.
2. Pneumonia — Cause: Mainly caused by bacteria inhaled through air or by contact.
Treatment: Antibiotics—Penicillin.
3. Bronchitis — Cause: This respiratory infection is mainly caused by a virus. Air pollution and smoking can also cause bronchitis.
Treatment: Drinking plenty of fluids, following a well balanced diet, frequent hand washing and adequate rest can prevent and improve bronchitis.