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.
Correlation between the T-SPOT (CoV-A/PHA) results and antibody titers. The correlation between the T-SPOT COVID-19 results and antibody titers was examined at three-time points: (a) 6 months after the primary series, (b) 3 weeks after the booster dose, and (c) 3 months after the booster dose. 2–6 M, 6 months after the primary series; 3–3 W, 3 weeks after the booster dose; 3–3 M, 3 months after the booster dose. PHA, phytohemagglutinin.
