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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 ]
Mycobacterium tuberculosis (M. tb), also known as Koch's bacillus, is a species of pathogenic bacteria in the family Mycobacteriaceae and the causative agent of tuberculosis. [ 1 ] [ 2 ] First discovered in 1882 by Robert Koch , M. tuberculosis has an unusual, waxy coating on its cell surface primarily due to the presence of mycolic acid .
Mycobacterium is a genus of over 190 species in the phylum Actinomycetota, assigned its own family, Mycobacteriaceae.This genus includes pathogens known to cause serious diseases in mammals, including tuberculosis (M. tuberculosis) and leprosy in humans.
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 ...
Since 1882, 24 March has been known as World Tuberculosis Day. [88] On 20 April 1882, Koch presented an article entitled Die Ätiologie der Tuberculose in which he demonstrated that Mycobacterium was the single cause of tuberculosis in all of its forms. [87] In 1890 Koch developed tuberculin, a purified protein derivative of the bacteria. [89]
The group of bacteria that causes strep throat, called group A Streptococcus, is "very contagious," Stockdale cautioned. Strep throat bacteria is spread through droplets from sneezes and coughs ...
For one, the bird flu virus — known as H5N1 — has spread uncontrolled in animals, including cows frequently in contact with people. Additionally, detections in wastewater show the virus is ...
Surgical and dental instruments are also sterilized to prevent infection by bacteria. Disinfectants such as bleach are used to kill bacteria or other pathogens on surfaces to prevent contamination and further reduce the risk of infection. Bacteria in food are killed by cooking to temperatures above 73 °C (163 °F). [citation needed]