People in these settings often lack the resources to seek timely medical attention, allowing the disease to progress unchecked. The bacteria responsible, Mycobacterium tuberculosis, spreads through the air when an infected person coughs or sneezes, but not everyone exposed becomes ill.
How a Weakened Immune System Allows TB Bacteria to Thrive
While often perceived as a disease of the past, TB continues to affect millions annually, particularly among vulnerable populations. HIV-positive individuals are up to 20 times more likely to develop active tuberculosis.
The body’s inability to mount an effective defense allows the bacteria to multiply and cause active disease. Understanding the Basics of Tuberculosis Transmission Tuberculosis is primarily an airborne disease, requiring close and prolonged contact with an infectious person.
How a Weakened Immune System Allows TB Bacteria to Thrive
Certain factors, including immune status, living conditions, and access to healthcare, dramatically influence whether a person will develop active tuberculosis. Substance Use and Malnutrition Chronic alcohol abuse and intravenous drug use weaken the immune system, increasing susceptibility to tuberculosis.
More About Tuberculosis who is at risk
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