Methods After the collection of sputum smear positive acid-fast staining 3+ male specimens with a certain concentration of rifampin,Mycobacterium tuberculosis phage was added to it.

• 方法收集痰厚涂片抗酸染色3+阳性标本与一定浓度的利福平作用后,加入结核分枝杆菌噬菌体,观察噬菌体斑数量,来测定对利福平的敏感性,同时以改良罗氏法作结核药敏对照。