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.
Standard box plots, constructed with SPSS, summarizing the reactions of reference sera against different antigens. (A) Summary of reactions (corrected OD, y axis) of COPV reference serum measured in parallel assays against GST, CPV3 L1, and COPV L1. (B) Same assay with CPV3 reference serum.
