六.磺胺药的适应症有哪些?怎样选择用药?磺胺药主要用于治疗以下细菌所致的感染性疾病。敏感的细菌包括:革兰氏阳性菌中的溶血性链球菌、肺炎球菌;革兰氏阴性菌中的脑膜炎双球菌、痢疾杆菌、大肠杆菌、流感杆菌、鼠疫杆菌等; What are the indications of sulfa drugs? How to choose drugs? Sulfa drugs are mainly used for the treatment of infectious diseases caused by the following bacteria. The sensitive bacteria include: hemolytic streptococcus in Gram-positive bacteria, pneumococcus; meningococcus in Gram-negative bacteria, Shigella, Escherichia coli, influenza bacteria, such as Yersinia pestis;