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mycoplasma penetrans

A species of gram-negative, facultatively anaerobic bacteria. This organism shows remarkable pathobiologic properties: it adheres to cell surfaces, deeply penetrates into the cell, and strongly adsorbs human red blood cells and human CD4_ lymphocytes and monocytes. M. Penetrans was first isolated from the urogenital tract of patients with aids and high frequencies of antibodies to it are seen in hIV-infected patients.