Global Drug Facility – Stop Tuberculosis

Tuberculosis, a bacterial infection, most commonly affects the lungs. Tuberculosis can also affect the central nervous system, lymphatic system, circulatory system, genitourinary system, bones and joints. Often Called TB for short, tuberculosis is the most common major infectious disease today. With that title the virus is infecting two billion people which is approximately one-third of the world’s population.

There are various tests that may be performed to diagnose the disease. The history is taken and a physical exam is conducted. A chest x-ray may also be done but will not be enough to diagnose the disease. A test called the Mantoux test or PPD may be done to rule out the disease. To confirm the disease a sputum smear from the patient will be tested for acid – fast bacillus, three positive results will confirm the disease.

The most common drug used for TB is Isoniazid (INH). This drug is fairly inexpensive, effective and easy to take. In conjunction with other drugs, this drug is very effective against TB. INH preventive treatment is advised for those individuals who having a tuberculin skin test that changed from negative to positive within the past two years, those who have been in close touch with a person having infectious tuberculosis, a positive skin test reaction and a special medical condition such as HIV infection or AIDS etc. Even if testing shows that the patient is infected with an isoniazid-resistant strain, this drug is continued as some organisms are yet to be sensitive. Two more drugs to which the organisms are likely to be sensitive will also be incorporated into the regimen.

Signs and symptoms are usually brought about by any type of pulmonary disease but there are hallmark signs and symptoms that may also support the diagnosis of Tuberculosis. The common signs and symptoms may include difficulty in breathing, progressive fatigue due to poor oxygenation, weight loss, lack of appetite, vomiting, indigestion, life insurance no exam body weakness, productive cough, low-grade fever and chills, night sweats, and most probably blood streaked sputum. Tuberculosis is one of the major killer diseases of modern times. Till recently, anti-tuberculosis drug regimes were successful in curing the disease in a majority of affected patients. However, multi-drug resistance is fast becoming a major concern for health providers the world over. Moreover, tuberculosis is no more a disease of only the poor or developing nations.

The basic treatment of Tuberculosis is a combination of more antibiotics found to be efficient against the particular type of bacterial strain. One single antibiotic is likely to lead to resistance developing. The cure must last for at least 6 months but the duration of treatment can go up to 9 months or a whole year. Most common, the combination of Hydrazid, Rifampicin, Pyrazinamid and Ethambutol is used in treating tuberculin infection. Prevalence of kidney tuberculosis differs all over the developing world where the infection is widespread. The disease is more widespread in higher socioeconomic groups, akin to the pattern discovered in Europe. Kidney tuberculosis is unusual in tropical Africa in spite of the fact that other kinds of tuberculosis are usual.

As already explained, there are two entities of the disease, infection and clinical manifestations, i.e., when the disease is active. Hence, it is important to establish the activity of the disease, which is important for starting the treatment of tuberculosis. The treatment is a long one and needs a combination of 3-4 drugs in all the cases. The following tests help in establishing the activity of the disease. However, as one can see, all tests have their own limitations, and therefore, one cannot rely on a single test.

Cutaneous tuberculosis is TB of the skin or mucous membrane from an external source of mycobacteria. There are several types of cutaneous tuberculosis: Lupus vulgaris, tuberculosis verruosa cutis and milary tuberculosis.

• Lupus vulgaris is a persistent type of cutaneous TB. The symptoms are small reddish brown lesions that are found on the face, eyelids, around the nose, cheeks, and ears.

• Tuberculosis verrucosa cutis is only contracted through direct skin inoculation when an individual had been previously exposed to mycobacteria. This type of cutaneous TB can last for years. The payday loans online symptoms are reddish brown wart-like growths on the body, skin lesions on hands, feet, buttocks, elbows and knees. Sometimes pus will seep through the fissures present in the lesions.

• Milary tuberculosis is a cutaneous TB that starts off as a pulmonary TB infection which then travels through the bloodstream. The symptoms are small red spots on the skin (which are sometimes concentrated to the trunk of the body), necrosis of infected areas, and the development of ulcers or abscesses on the skin.

Involvement of the skin by Mycobacterium tuberculosis isrelatively uncommon in developed countries but is oftenseen in the developing world, where the overall prevalenceof tuberculosis is much higher. The condition still needs tobe considered in the west, particularly in those who havemigrated from the Indian subcontinent and Africa. Manydescriptive terms have been applied to the wide variety ofclinical presentations that can occur, and to some extentthese reflect the mode by which the skin may be affected:haematogenous spread from a deep source (most lupusvulgaris); direct spread from underlying organs, e.g. lymphnodes, bones, respiratory or gastrointestinal tract (scrofuloderma,tuberculosis cutis orificialis); direct inoculationfrom outside (some lupus vulgaris, tuberculosis verrucosacutis and warty TB).The commonest form is lupus vulgaris, which presents asan area of indurated, reddish-brown skin, characteristicallyon the head and neck, although lesions may occur elsewhere. The lesions gradually spread and have atendency to produce scar tissue, which results in distortionof normal anatomy and loss of hair follicles in hair-bearingareas. When the microorganism is inoculated directly intothe skin, lesions instant payday loans sometimes have a warty surface.

Tuberculosis may result in a number of skin changesin which the microorganisms are not directly involved(known as tuberculides}:

• Erythema nodosum , in which the lesionsusually appear in association with primary infection;

• Erythema induratum (or Bazin’s disease), in which thenodular, ulcerative lesions appear on the lower legs,involving the calves as well as the shins; The rare papulonecrotic and lichenoid forms.Investigation of suspected cutaneous tuberculosis involvesbiopsies for histology and culture and a search for involvementof internal organs.