By Dr. BPS Tyagi Tuberculosis (TB) is a serious infectious disease caused by the Mycobacterium tuberculosis bacteria, primarily affecting the lungs. Certain factors can increase the risk of developing TB. Here are the key risk factors:
1. Weakened Immune System
- HIV/AIDS: People with HIV have a weakened immune system, making them more susceptible to TB infection.
- Immunosuppressive Medications: Individuals taking medications that suppress the immune system (e.g., chemotherapy, steroids) are at higher risk.
2. Close Contact with an Infected Person
- TB spreads through the air when an infected person coughs, sneezes, or speaks. Living in close quarters with someone who has active TB increases the risk of transmission.
3. Living in or Traveling to High-Risk Areas
- Endemic Areas: People living in or traveling to countries with high rates of TB (e.g., parts of Africa, Asia, and Latin America) are at greater risk.
- Poor Sanitation: In areas with limited access to clean water, healthcare, and proper sanitation, the spread of TB is more common.
4. Age
- Young Children and Older Adults: The very young and elderly are more susceptible to infections due to their less robust immune systems.
5. Chronic Diseases
- Diabetes: People with diabetes are at an increased risk of TB due to impaired immune function.
- Kidney Disease: Chronic kidney disease, especially those undergoing dialysis, can weaken the immune system.
- Other Chronic Conditions: Other conditions like cancer or lung diseases also increase the risk of developing TB.