Overview of Tuberculosis
Tuberculosis (TB) is a bacterial infection disease of the lungs. It is caused by the Mycobacterium tuberculosis. There are two type of TB one is called latent TB and other is active TB. One third of the world population is infected with the latent TB. In latent TB bacteria live inside your body without making you sick. But when the human immune system is compromised the latent TB in converted into the active making the effected person sick. In the active TB bacteria caused the symptoms and can be transmitted to other humans.
Causes and Risk Factors of Tuberculosis
The main cause of TB is the bacteria Mycobacterium tuberculosis. It can be transmitted through the air from the person who is infected when he/she cough, sneeze, spits, laugh and talk. When some person is given antibiotic to fight TB but if treatment is not completed there is a chance that some bacteria survive during the treatment and become resistant against available antibiotic this is called multidrug resistant TB. MDR-TB is deal while giving anti-TB drug. But in most of the cases of MDR-TB any available antibiotic is not effective. There are several risk factors involved which can lead to the development of the TB. If persons are living in an area which is over polluted or their diet is not proper or they are recently infected with the disease. Patients of diseases like HIV and patient with weak immune system are more at risk of getting the TB. People living in an area country where TB is more common and working with a person who has TB, a health worker dealing with TB patients, a person working in a facility like prison and shelter homes where TB is common disease are more at risk. Smoker of cigarette or alcoholic person have more chances that they can develop TB.
Signs and Symptoms of Tuberculosis
TB mostly effect the lungs so the mostly symptoms are, bad cough that prolonged to 3 weeks or more, pain in the chest, blood or sputum in the cough. Other symptoms are fever, fatigue, weight loss, loss of appetite and sweating at night.