simret 19 Posted January 15 Share Posted January 15 Hi everyone, Has anyone of you out there has done a correlative study between titer analyzers? I need to determine high titer Convalescent Plasma for Covid-19 patient; FDA website's cut off is 12 or greater is qualified high titer using Ortho VITROS IgG assay. What is it correlate the 12 IgG on Ortho VISTROS on siemen analyzer or any other assay? Thanks Link to post Share on other sites
David Saikin 1,433 Posted January 15 Share Posted January 15 I would think that titers would be relatively constant across different platforms, but then again I am a blood banker. How do you get a titer of 12 (guess I'm used to serial dilutions 1:2) MAGNUM 1 Link to post Share on other sites
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