Abbott COVID 19 抗体test 在field 应用后的灵敏度100%, 特异性99.9%, 比这家公司自己说的特异性99.5%还要好。
- Abbott Laboratories’ antibody test for the new coronavirus is highly likely to correctly determine whether people have ever been infected with the fast-spreading virus, the company said, citing a U.S. study.
- Researchers at the University of Washington School of Medicine found Abbott’s test had a specificity rate of 99.9% and a sensitivity rate of 100%, suggesting very few chances of incorrectly diagnosing a healthy person with the infection and no false negatives.
Abbott 和Roche 的抗体测验是最强的,不奇怪。美国临床检验试剂盒要卖给其他单位,需要通过FDA的medical device程序。到其他单位后应用试剂盒的检验过程由 CLIA 法律(clinical lab improvement act) 决定让College of American Pathology(CAP) 监管。
如果一个单位自行设计出了一个临床检验试剂盒,不卖给别人,只是自用,只需要CLIA/CAP 监管就可以。
FDA和 CLIA/CAP的监管有些区别的。但全部由FDA 管是不现实的,因为很多临床检验费事却不赚钱,或者太复杂,不能做成试剂盒。 比如罕见病的检验病人太少,白血病和恶性淋巴瘤的检验需要用几十个单抗,怎么做试剂盒?准备卖多少钱?试剂公司卖单抗就可以了。。。
https://bbs.wenxuecity.com/health/910797.html
COVID19 情况紧急,抗体试剂盒良莠不齐,问题不少。
非常可惜, Abbott和Roche 的试剂盒好,但必须用在自己的机器上才这么好,机器不便宜,这是瓶颈:(