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a bacterial species causing spontaneous tuberculosis in salt water fish; it also occurs in other cold-blooded animals, in some aquaria and swimming pools in which it may cause human cutaneous infection (see swimming pool granuloma), irrigation canals and ditches, and ocean beaches.
Mycobacterium marinumAn atypical mycobacterium belonging to Runyon group 1. Mycobacterium marinum is a photochromogen (i.e., it produces pigment when cultured and exposed to light). It lives in fresh or salt water, with optimal growth at 32°C; it causes chronic ulcerating granulomatous lesions, which may evolve into a sporotrichosis-like disease with ascending lymphangitis or spread to deeper tissues.
Two-agent therapy with rifampin, rifabutin, ethambutol, clarithromycin and sulfonamides, including trimethoprim-sulfamethoxazole.
Mycobacterium marinumInfectious disease A mycobacterium that lives in fresh or salt water, causing chronic ulcerating granulomatous lesions. See Swimming pool granuloma.
My·co·bac·te·ri·um ma·ri·num(mī'kō-bak-tēr'ē-ŭm mā-rē'nŭm)
A bacterial species causing tuberculosis in saltwater fish; it also occurs in other cold-blooded animals, in some swimming pools in which it may cause human cutaneous infection, in irrigation canals and ditches, and on ocean beaches.