Red alert

 作者:钦徵     |      日期:2019-03-07 01:08:00
By Joanna Marchant BLOOD tests could soon pick up the human form of mad cow disease—before any symptoms appear. Two groups of researchers have developed separate ways to detect low levels of the prion which causes variant CJD. The startling advances could also lead to animal tests for BSE and scrapie and ways to screen blood donated for transfusions. Small amounts of the prion that causes vCJD are thought to circulate in the blood,