Tuberculosis (TB): Causes, Symptoms, and Treatment

Tuberculosis (TB) is a contagious bacterial infection that primarily affects the lungs but can also spread to other parts of the body. Despite being curable, TB remains a significant global health concern. Understanding its symptoms, transmission, and treatment can help prevent its spread and ensure effective management.

What Causes Tuberculosis?

TB is caused by Mycobacterium tuberculosis, a bacterium that spreads through airborne droplets when an infected person coughs or sneezes. It thrives in environments with poor ventilation and weak immune systems, making prevention essential.

Types of TB

1. Latent TB Infection:

Individuals have the bacteria in their body but do not show symptoms. They are not contagious but can develop active TB if their immune system weakens.

2. Active TB Disease:

Symptoms appear, and the infection spreads to others. Without treatment, active TB can be life-threatening.

Symptoms of TB

TB symptoms vary based on its location in the body, but common signs include:

  • Persistent cough lasting more than three weeks

  • Coughing up blood or mucus

  • Chest pain and difficulty breathing

  • Fever and night sweats

  • Fatigue and weakness

  • Unexplained weight loss

Diagnosis and Treatment

TB is diagnosed through skin tests, blood tests, chest X-rays, and sputum analysis. Once confirmed, treatment typically includes:

1. Medication:

  • TB is treated with a combination of antibiotics, such as Isoniazid, Rifampin, Ethambutol, and Pyrazinamide, over six months or longer.

  • Adherence to the full treatment course is crucial to prevent drug-resistant TB.

2. Drug-Resistant TB:

  • Improper or incomplete treatment can lead to multidrug-resistant TB (MDR-TB), requiring stronger medications and prolonged therapy.

3. Preventive Measures:

  • BCG Vaccine: Provides partial protection against TB, particularly in children.

  • Good Hygiene: Covering the mouth while coughing and avoiding close contact with infected individuals.

  • Ventilation & Mask Usage: Reducing exposure in high-risk areas.

Final Thoughts

Tuberculosis remains a major public health concern, but early detection, proper treatment, and preventive measures can significantly reduce its spread. Raising awareness and ensuring timely medical intervention can save lives and improve global TB control efforts.