I contracted MRSA and it spread to 3 spots total. They were drained and I have been taking bactrium (sulfameth/trimethoprim 800/160) tablets for 1.5 mos. I recently finished my pills and now the MRSA...
Rifamycins are particularly effective against mycobacteria, and are therefore used to treat tuberculosis, leprosy, and mycobacterium avium complex (MAC) infections.
Rifamycins are a subclass of ansamycins with high potency against mycobacterial activity. This resulted in their wide use in the treatment of tuberculosis, leprosy, and AIDS-related mycobacterial infections. Since then various analogues have been isolated from other prokaryotes.
They are a subclass of the larger family, Ansamycin.
Ansamycins is a family of secondary metabolites that show antimicrobial activity against many gram-positive and some gram-negative bacteria and includes various compounds among which: streptovaricins and rifamycins .
All of the microorganisms which you ask about are used to fight diseases and ailments and not cause them but they may have adverse effects.