Figure 5From: Evaluation of immune responses following infection of ponies with an EHV-1 ORF1/2 deletion mutantLymphoproliferative responses to in vitro stimulation with PHA on day 7 post infection. Controls (n = 5): white bars, Ab4 WT infected (n = 7): grey bars, Ab4 delta ORF1/2 infected (n = 7): black bars. Data are displayed as means + SEM. A statistical difference from the control group is indicated by * (p < 0.05).Back to article page