肺炎球菌肺炎是社区获得性肺炎中最常见的一种。一年四季均可发病,但以秋末初冬及冬春交替时更为多见。它是由肺炎链球菌作为病原体引起的急性肺部感染。该菌为短链状或成对的圆形、柳叶刀形,又叫肺炎双球菌。细菌外面由多糖体组成的荚膜为致病的物质基础。约20—40%健康人鼻咽部可分离出肺炎球菌。在冬春季节呼吸道疾病流行期间,健康人呼吸 Pneumococcal pneumonia is the most common form of community-acquired pneumonia. Disease can occur throughout the year, but the late autumn and winter and spring alternating more common. It is an acute lung infection caused by Streptococcus pneumoniae as a pathogen. The bacteria are short-chain or paired round, lancet-shaped, also known as pneumococcus. Bacteria outside the capsule composed of polysaccharides for the pathogenic material basis. About 20-40% of healthy human nasopharynx can be isolated from pneumococcus. During the winter and spring respiratory diseases, healthy people breathe