肺炎链球菌是急慢性上颌窦炎的常见菌。近年来 ,由于耐青霉素肺炎链球菌的不断出现 ,人们对其研究也引起了重视。 1 999年 1 0月以前 ,我们按照常规的取材和细菌培养方法 (常规组 ) ,上颌窦炎中肺炎链球菌的检出率则很低 ;1 999年 1 0月改进方法后 (改进组 ) ,检出率较常规组明 Streptococcus pneumoniae is a common bacteria in acute and chronic maxillary sinusitis. In recent years, due to the continuous emergence of penicillin-resistant Streptococcus pneumoniae, people pay more attention to its research. Before January 0, 1999, we detected the prevalence of S. pneumoniae in maxillary sinusitis according to the conventional methods of harvesting and bacterial culture (routine group). After the method of improvement in January 1999 (improved group) Out rate than the conventional group Ming