A nonmotile,gram - positive bacterium(Streptococcus pneumoniae)that is the most common cause of bacterial pneumonia,associated with meningitis and other infectious diseases.

 
  • 肺炎球菌一种非游走的革兰氏阴性细菌(肺菌链球菌),是细菌性肺炎最常见的致病原因,并与脑膜炎和其它传染性疾病有关
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