肺炎球菌菌苗免疫接种具有悠久的历史。现行的肺炎球菌菌苗是纯化型特异性多糖。1984年以前使用的12、14和17价菌苗每型含多糖50ug;较新的23价菌苗只含25μg。接种方法为0.5ml 肌肉注射。菌苗中的各种菌型涉及引起严重感染菌型的80～90%。免疫 Pneumococcal vaccine immunization has a long history. The current pneumococcal vaccine is a purification-specific polysaccharide. The 12, 14 and 17 vials used prior to 1984 contained 50 μg of polysaccharide per type; the newer 23-valent vaccine contained only 25 μg. Inoculation method is 0.5ml intramuscular injection. The various bacterial strains in the vaccine involve 80-90% of the strains that cause severe infection. Immune