肺炎链球菌(俗称肺炎双球菌)是引起肺炎、脑膜炎、中耳炎以及心内膜炎、关节炎等疾病的重要病原菌。此菌引起的肺炎是一种呼吸道常见的急性传染病,有较严重的危害性。在化脓性脑膜炎的病原中肺炎链球菌常常是主要的病原菌,其病死率较高。急性化脓性中耳炎是婴幼儿和儿童最常见的疾病,不仅给患儿带来痛苦。 Streptococcus pneumoniae (commonly known as pneumococci) is caused by pneumonia, meningitis, otitis media and endocarditis, arthritis and other diseases of the important pathogens. Pneumonia caused by this bacterium is a common acute infectious disease of the respiratory tract, with more serious dangers. In the pathogens of purulent meningitis, S. pneumoniae is often the major pathogen and has a higher case fatality rate. Acute suppurative otitis media is the most common disease in infants and children, not only to bring pain to children.