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 ...
Both are indirect tests which detects the body's immune response to TB bacilli exposure. As there are no gold standard tests for diagnosis of LTBI, it is difficult to assess the performance of these two tests. TST is based on a delayed-type hypersensitivity reaction that occurs when those ...
This occurs when the infected person coughs, sneezes, or speaks. The symptoms of tuberculosis are two types respiratory and non-respiratory, but the most important symptoms are cough with or without blood, weight loss, night sweat, and fever. Diagnosis: TB can be diagnosed with two types of ...
Transmission of TB occurs when individuals with active pulmonary TB cough, spit, or sneeze, which has the potential to release aerosol droplets of TB infected saliva. This makes TB a highly infectious disease with a plausible likelihood that it could spread rampantly if the conditions were proper...
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% ...
Latent TB occurs when a person carries the bacteria but does not develop symptoms. However, there is a chance that the latent infection will reactivate later in life when the body's immune defenses weaken, leading to active disease. Active TB: ...
will signal that something foreign has invaded the body," he said. "When they encounter pathogens, they produce inflammatory mediators. The bacteria have to temper that inflammatory response in order to establish virulence or 'set up shop.' We're studying the dynamics of how that occurs." ...
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...
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 their way into the bloodstream. ... ...
Overuse and misuse of antibiotics has led to a rise in antibiotic resistance. Antibiotic resistance occurs when bacteria are no longer sensitive to a medication that should eliminate an infection. Antibiotic-resistant bacterial infections are potentially very dangerous and increase the risk of death. Ab...