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.
Progression over time of positive detection of specific anti-Sars-Cov-2 antibodies using pooled results from 23 confirmed COVID-19 patients, including one IgG qualitative immunoassay (A) and two different IgG (B) and IgM (C) quantitative immunoassays, ANSH (Method 1) and AESKU (Method 2).
