There can be several causes of tuberculosis if we consider the reason which led to the infection. Certain factors increase the risk of the disease such as:
Strong and healthy immune system can defend your body from an attack of TB but if certain diseases bring down its resistance capacity, you can fall prey to the infection.
The diseases which can cause TB as they weaken the resistance offered by your immune system are:
TB risk is higher for people who live in or travel to countries that have high rates of tuberculosis, such as:
Poverty means a person cannot afford proper medical care. If a person has a low income, lives in a remote area, has recently migrated to a different country recently, or is homeless, the medical care required for diagnosis and treatment of TB may not be affordable to him. Moreover, the substance abuse that they take to, which continues long-term also weakens the immune system of poor people. This makes them much more vulnerable to tuberculosis.
Regular contact with TB infected people increases your risk of coming in contact with the tuberculosis bacteria. Wearing a mask and regular washing of hands reduces the risk to a great degree. People living or working in a residential care facility, those who work in prisons, nursing homes or immigration centers are at an increased risk of tuberculosis. Over crowding and poor ventilation always increases the risk of this disease.
Refugees live under very high risk of contractng the tuberculosis infection with their crowded, unsanitary conditions. Their weakened immune system due to poor nutrition compounds their problem and increases the risk of being sick due to the infection.
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