The disease occurs when the tubercle bacilli multiply and become sufficiently numerous to overcome the body's defenses and one or more organs of the body become diseased. Tuberculous infection is either symptomatic with the classical symptoms of the disease or asymptomatic and is seen in persons ...
TSTis based on a delayed-type hypersensitivity reaction that occurs when those infected withM. tuberculosisare exposed to certain antigenic components present in extracts of culture filtrates, the “tuberculins”.4A meta-analysis reported a pooled sensitivity and specificity of 70% and 60% respective...
Tuberculosis (TB) is atransmittable bacterial infection, which is caused by theMycobacterium tuberculosisand commonly affects the lungs, but can affect other organs as well. TB is broadly categorized into active or latent TB. The active TB occurs when the TB bacteria multiply in the body and pro...
The disease usually remains in this inactive or dormant state for life. People with inactive tuberculosis do not have any symptoms. Inactive TB can be diagnosed by a special skin test or blood test.Active tuberculosis occurs in several different forms:Primary pulmonary tuberculosis –In about 5% ...
Children are a vulnerable group who display unspecific symptoms of TB disease, leading to a delayed diagnosis that often occurs when the disease had already progressed to serious stages, increasing the risk of TB-associated death in children [7, 29]. As a result, timely CT plays an important...
There are some “good” things about the disease of tuberculosis (TB). One is that it can be cured. Another is that TB is not spread by shaking hands, sharing dishes, or sharing clothing. Another is that people usually catch it only from o...
Latent infection:The bacteria remain inactive in the body but can cause infection later on in life. Reactivation disease:Active tuberculosis occurs years after a period of latent infection. What Are the Symptoms of Tuberculosis? Over the years, experts and researchers have shared various symptoms ass...
The disease can spread to adjacent spinal vertebral bodies and intervertebral discs, leading to vertebral body collapse, which is clinically manifested as kyphosis or gibbous. Lower-extremity paralysis occurs in up to half of patients with undiagnosed Pott disease. Although any joint may be affected,...
What are the 3 types of tuberculosis? Tuberculosis: Types Active TB Disease. Active TB is an illness in which the TB bacteria are rapidly multiplying and invading different organs of the body. ... Miliary TB. Miliary TB is a rare form of active disease that occurs when TB bacteria find ...
1.an infectious disease that may affect almost any tissue of the body, esp. the lungs, caused by the organismMycobacterium tuberculosis,and characterized by tubercles. 2.this disease when affecting the lungs. Abbr.:TB [1855–60; < New Latin; seetubercle,-osis] ...