A Political Assault on Antibody Tests
If a positive test doesn’t indicate immunity, how in the world did patients ever recover from infection?

Tests for Covid-19 antibodies are now available, but news reports suggest—and some physicians are advising their patients—that antibodies may not provide immunity. This assertion defies generations of immunology research and is a political attack on reliable tests.

@nyouyou
关于血清检验，简单而言，抗体阳性不代表感染过新冠病毒，也不代表对新冠有保护能力：至少据我所知，现在各国针对新冠抗体的检验并不能有效地区分新冠病毒与其他普通冠状病毒。也是这次新冠才了解到人类普通感冒有18-30%（不同数据源的统计不一样）因为冠状病毒；只要这些冠状病毒与新冠的S蛋白、N蛋白有同源性、能产生同样的抗原肽，就可能产生能识别新冠片段的抗体，但这些抗体是不是保护性的中和抗体，不一定的。所以抗体检测本身只是个参考，不能做定论。不过抗体阳性总比阴性的保护概率大呀，所以有参考价值收起全文d