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Etiological discovery in medicine has a history in Robert Koch's demonstration that species of the pathogenic bacteria Mycobacterium tuberculosis causes the disease tuberculosis; Bacillus anthracis causes anthrax, and Vibrio cholerae causes cholera. This line of thinking and evidence is summarized in Koch's postulates. But proof of causation in ...
Abdominal tuberculosis accounts for It makes up for 5% of the tuberculosis cases worldwide, [1] out of which 1–3% is gastrointestinal tuberculosis. [11] It makes up for less than 11–15% of all tuberculosis cases in immunocompetent individuals. [1] [12] Approximately 20% of individuals with abdominal tuberculosis have active tuberculosis. [13]
Tuberculosis (TB), also known colloquially as the "white death", or historically as consumption, [7] is a contagious disease usually caused by Mycobacterium tuberculosis (MTB) bacteria. [1] Tuberculosis generally affects the lungs , but it can also affect other parts of the body. [ 1 ]
Low body weight is associated with risk of tuberculosis. A body mass index (BMI) below 18.5 increases the risk by 2 to 3 times. An increase in body weight lowers the risk. [14] People with diabetes mellitus are at increased risk of contracting tuberculosis, [15] and they have a poorer response to treatment, possibly due to poorer drug ...
Symptoms of M. tuberculosis include coughing that lasts for more than three weeks, hemoptysis, chest pain when breathing or coughing, weight loss, fatigue, fever, night sweats, chills, and loss of appetite. M. tuberculosis also has the potential of spreading to other parts of the body. This can cause blood in urine if the kidneys are affected ...
The Mycobacterium tuberculosis complex (MTC or MTBC) is a genetically related group of Mycobacterium species that can cause tuberculosis in humans or other animals. It includes: Mycobacterium tuberculosis; Mycobacterium africanum; Mycobacterium orygis [1] Mycobacterium bovis and the Bacillus Calmette–Guérin strain; Mycobacterium microti ...
Tuberculous pericarditis is a condition that accounts for 1-2% of presentations of tuberculosis outside of the lungs. [2] It is found in people of all ages and typically affects males more frequently than females. [4] Tuberculosis is also one of the leading causes of effusive pericarditis worldwide. [6]
Because MDR tuberculosis is an airborne pathogen, persons with active, pulmonary tuberculosis caused by a multidrug-resistant strain can transmit the disease if they are alive and coughing. [41] TB strains are often less fit and less transmissible, and outbreaks occur more readily in people with weakened immune systems (e.g., patients with HIV ).