From the clinical trials of view, at least 85% of them have a protective effect after vaccination.
从临床实验来看，至少有85%以上的人接种以后具有保护作用。
2
BCG is indeed disseminated tuberculosis in children must have a protective effect, but the effect of the immune at vaccination gradually decreased after 10 years.
卡介苗确实对儿童播散性结核有一定的保护效果，但是，其免疫效果在接种10年以后逐步减退。
3
He added that his "most surprising" finding was the observation that vaccination against influenza and pneumococcal infection appeared protective in these patients.