1970～1972年,作者在San Antonia地区坚持了一种白喉带菌者的治疗规划,以比较苄星青霉索与红霉素在清除鼻咽部白喉杆菌的作用。1972～1973年采用氯林可霉素作为带菌者的治疗规划,认为白喉带菌者对青霉素过敏或对红霉素不能耐受者,氯林可霉素是一种可以交替应用的抗菌素。带菌者按随机方法用下列三种之一进行治疗:(1)肌注600,000单位(1～5岁)或1,200,000单位(5岁以上)苄星青霉素。(2)口服无味红 From 1970 to 1972, the authors maintained a treatment plan for diphtheria carriers in San Antonia to compare the efficacy of benzathine penicillin and erythromycin in the removal of C. diphtheriae from the nasopharynx. 1972 to 1973 using clindamycin as a carrier treatment plan that diphtheria carriers of allergic to penicillin or erythromycin can not tolerate, clindamycin is an alternative antibiotics. The carriers are randomized in one of three ways: (1) intramuscularly 600,000 units (1 to 5 years old) or 1,200,000 units (over 5 years old) of benzathine penicillin. (2) oral tasteless red