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.
IFNγ reading by ELISPOT. (A) Group 1: unvaccinated animals. (B) Group 2: animals immunized once five days before challenge. (C) Group 3: animals immunized once three days before challenge. (D) Group 4: animals immunized once one day before challenge. No statistical differences were detected between the vaccinated groups (Kruskal–Wallis test p > 0.05).
