疫苗是通过往身体注射灭活或者减毒的微生物起到作用,这相当于给免疫系统注入新的势力,它不仅能够起到预防疾病的作用,有时还能修复混乱的免疫系统。20世纪初,法国的两位细菌学家卡默德和介兰一起发明了一种可以成功预防结核杆菌的疫苗,并根据二人的姓氏被命名为卡介苗。自卡介苗诞生至今的90多年中,一直被用于预防儿童结核病。世界上大多数的国家都将卡介苗列为计划免疫中必须接种的疫苗之一,为预防结核病做出 Vaccines work by injecting inactivated or attenuated microbes into the body, which is equivalent to injecting new forces into the immune system, not only to prevent disease but also to repair the chaotic immune system. At the beginning of the 20th century, two French bacteriologists Cameron and Medjugan invented a vaccine that could successfully prevent Mycobacterium tuberculosis and was named Bacille Calmette-Guerin (BCG) based on their surnames. More than 90 years since the birth of BCG, it has been used to prevent childhood tuberculosis. Most countries in the world have classified BCG as one of the vaccines that must be vaccinated in order to prevent tuberculosis