@LongDesertTrain @EricTopol Their IgG assay is worse than their total (Ig) assay on seroreversion. Total is pretty good, outside of the first few weeks post-infection. Usual caveats apply (ex: after a single infection only, not after re-infection nor post
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@rushidesai They're quite inaccurate. And their accuracy appears to be especially low among those who had mild symptoms, e.g. https://t.co/nXR1CaNCOm
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...Num antigens measured: classic immunoassays << bead array << protein microarray << phage array Helb et al https://t.co/solPYAdDyl Serological assays need to be validated & optimised. SARS-CoV-2 assays derived from recent severe sam
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@ArielKarlinsky @anup_malani @Mahan_Ghafari Waning antibodies isn't surprising depending on what Ortho Vitros assay they're using. I'm not as familiar with the iFlash assay they also mention. https://t.co/qoCMXPknNq https://t.co/OTPuOoeJP3