NABA hepatitis 费了我1个小时了

pharmacystar

Blood banks will shortly start to screen all donors for NANB hepatitis. Although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors, they will still miss two-thirds of donors carrying NANB hepatitis. Therefore, about 10 percent of actual donors will still supply NANB-contaminated blood.

A Donors carrying NANB hepatitis do not, in a large percentage of cases, carry other infections for which reliable screening tests are routinely performed

测血时，第一项测得是艾滋病，现有的检测手段只能测出三分之一携带者

之后还有很多测试，比如乙肝病毒，漏网的10%的携带者如果刚好有这些别的病毒，也会被排除掉

就不足10%了

这就是A的意思