Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Association between paired plasma and DBS SARS-CoV-2 IgG Paired results from 168 plasma and DBS cards. A. DBS results based on negative or positive plasma SARS-CoV-2 IgG. Gray circles are remnants and black triangles are prospectively collected plasma / DBS cards. B. Correlation between the plasma result and DBS result. Dashed line is manufacturer cutoff for plasma and dotted line is the proposed cutoff of 0.16 S/CO for DBS.
