Tuberculosis (TB) is caused by the bacterium,M. tuberculosis. It is a serious lung disease that can be life-threatening if it’s not treated correctly. It is the world’s most common disease caused by an infectious organism, with nearly 2 billion people being diagnosed with it every year....
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] ...
Tuberculosis, an infectious disease caused by the micro-organism Mycobacterium tuberculosis, has wrought devastation for centuries. According to estimates, in the 1800s alone, say estimates, it was responsible for almost one-third of the deaths in Europe. In the 20th century, the incidence of TB...
Tuberculosis (TB) is a leading cause of morbidity and mortality globally with an estimated 9 million cases and 1.5 million deaths each year. The WHO has published the End TB Strategy in recognition of the need to control and eliminate TB. Health systems, health care staff and public health ...
TB is caused by M tuberculosis, a slow-growing obligate aerobe and a facultative intracellular parasite. The organism grows in parallel groups called cords (as seen in the image below). It retains many stains after decoloration with acid-alcohol, which is the basis of the acid-fast stains us...
Children infected with tuberculosis are more likely than adults to develop active disease, which commonly manifests as extrapulmonary disease. Lymphadenitis (scrofula) is the most common extrapulmonary manifestation, but TB may also affect the vertebrae (Pott disease), the highly vascular epiphyses of ...
Thus, the local mechanisms and the dynamics of necrosis at the advanced disease stage are not the same as in primary lesions and the organ- and organism-scale factors may play bigger or different roles. Two different models of necrosis in advanced TB have been proposed: Model 1: This is ...
Active TB is caused by the inability of the host immune system to defend against the invading pathogen. In this scenario, the disease is symptomatic due to a recent infection and can spread to others. Alternatively, active TB can be due to a reactivation of a latent infection. In fact, ...
Chlamydiais an infection in men and women caused by an organism calledChlamydia trachomatis. Chlamydia increases the risk of pelvic inflammatory disease (PID) in women. Gonorrhea, also known as "clap" and "the drip," is caused by Neisseria gonorrhoeae. Men and women can be infected. Gonorrhea...
tuberculosis on LJ media in cases of smear negative for acid-fast bacilli is a known phenomenon as 105 bacilli per mL of sputum are re- quired for the organism to be seen on light microscope but culture may show growth [27]. In the current study, the number of HIV positive and ...