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The risk of developing TB is estimated to be between 20 and 37 times greater in people living with HIV than among those without HIV infection. TB is a leading cause of morbidity and mortality among people living with HIV. [13] In 2009, there were 9.4 million new cases of TB, of which 1.2 (13%) million were among people living with HIV.
Drug-resistant TB is a serious public health issue in many developing countries, as its treatment is longer and requires more expensive drugs. MDR-TB is defined as resistance to the two most effective first-line TB drugs: rifampicin and isoniazid.
Management of tuberculosis refers to techniques and procedures utilized for treating tuberculosis (TB), or simply a treatment plan for TB.. The medical standard for active TB is a short course treatment involving a combination of isoniazid, rifampicin (also known as Rifampin), pyrazinamide, and ethambutol for the first two months.
This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties.
MDR-TB can become resistant to the major second-line TB drug groups: fluoroquinolones (moxifloxacin, ofloxacin) and injectable aminoglycoside or polypeptide drugs (amikacin, capreomycin, kanamycin). When MDR-TB is resistant to at least one drug from each group, it is classified as extensively drug-resistant tuberculosis (XDR-TB). [8]
Mycobacterium tuberculosis (M. tb), also known as Koch's bacillus, is a species of pathogenic bacteria in the family Mycobacteriaceae and the causative agent of tuberculosis. [ 1 ] [ 2 ] First discovered in 1882 by Robert Koch , M. tuberculosis has an unusual, waxy coating on its cell surface primarily due to the presence of mycolic acid .
Miliary tuberculosis is a form of tuberculosis that is characterized by a wide dissemination into the human body and by the tiny size of the lesions (1–5 mm). Its name comes from a distinctive pattern seen on a chest radiograph of many tiny spots distributed throughout the lung fields with the appearance similar to millet seeds—thus the term "miliary" tuberculosis.
Extrapulmonary tuberculosis is tuberculosis (TB) within a location in the body other than the lungs. It accounts for an increasing fraction of active cases, from 20 to 40% according to published reports, [2] and causes other kinds of TB. [3] [4] These are collectively denoted as "extrapulmonary tuberculosis". [4]