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[myco- + -in] A suffix used in pharmacology to designate any antibiotic derived from species of Streptomyces.

myco-, myc-

[Gr. mykēs, stem mykēt-, fungus, mushroom] Prefixes meaning fungus. SEE: myceto-.


(mī″kō-băk-tē″rē-ō′sĭs) An infection caused by any mycobacterium.


(mī″kō-bak-tir′ē-ŭm) [myco- + bacterium] A genus of slender, acid-fast, nonmotile, non–spore-forming bacilli of the family Mycobacteriaceae, which includes the causative agents of tuberculosis and leprosy. Species include M. africanum, M. avium intracellulare, M. bovis, M. chelonei, M. fortuitum, M. gastri, M. gordonae, M. kansasii, M. marinum, M. scrofulaceum, M. terrae, M. triviale, M. smegmatis, and M. xenopi.

M. bovis The causative species of tuberculosis in cows and, less commonly, in humans.

M. kansasii A causative species of tuberculosis-like pulmonary disease in humans.

M. leprae The causative species of leprosy.

M. marinum An atypical mycobacterium that thrives in water and produces skin infection resembling sporotrichosis. It is the cause of swimming pool granuloma.

nontuberculous M. ABBR: NTM. Any mycobacterium that does not cause tuberculosis. There are four main classes. Three of these groups grow more slowly than M. tuberculosis and one group grows more rapidly. These organisms may cause various skin, lung, or other conditions or they may be harmless.

M. tuberculosis The causative agent of tuberculosis in humans. SEE: tuberculosis.

M. ulcerans A causative agent of infections of the skin and the underlying soft tissues. It is a common cause of illness in tropical and subtropical Africa and South America, where it is responsible for Buruli ulcer. It is thought to be the third most common disease-causing mycobacterium (after M. tuberculosis and M. leprae) in humans.

Mycobacterium abscessus complex

(mī″kō-bak-tir′ē-ŭm ab-ses′ŭs) SEE: under complex.


(mī″kō-dĕr′mă) [Gr. mykos, mucus, + derma, skin] Mucous membrane.


(mī-kŏl′ō-jē) [″ + logos, word, reason] The science and study of fungi.


(mī-kō-fē′nō-lāt) An immunosuppressive drug used to prevent organ rejection after transplantation.


(mī″kō-plaz′mă) [myco- + plasma] A group of bacteria that lack cell walls and are highly pleomorphic. There are more than 70 organisms in this group, including 12 species that infect humans. Tetracyclines or erythromycins are effective for treatment of M. pneumoniae and M. hominis infections. Other treatment choices include some cephalosporins or fluoroquinolones.

M. genitalium A species of Mycoplasma that can cause nongonococcal urethritis. It is the smallest free-living organism known.

M. hominis A species ...

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