抗结核病免疫的历史充满着挫折、争论和意外。一直继续到南印度进行的一项最大的DCG现场对照试验,此项试验表明卡介苗无保护效果。这种悲观的结果,并非没有先例。Koch及其追随者早先曾试图用注射死菌“旧结核菌素”治疗结核病人,表明害多益 The history of anti-tuberculosis immunization is full of setbacks, controversies and accidents. Continues to one of the largest DCG field-control trials in South India, which showed no protective effect against BCG. This pessimistic result is not without precedent. Earlier attempts by Koch and his followers to treat tuberculosis patients with the injection of dead tuber “old tuberculin”