Mycobacteria, skins, and needles.
D000038:Abscess; D006801:Humans; D007267:Injections / Q000009:adverse effects*; D009161:Mycobacterium / Q000302:isolation & purification; D009164:Mycobacterium Infections / Q000209:etiology*; D012874:Skin Diseases, Infectious / Q000209:etiology*