On days three and five post-infection, pro-apoptotic Bax expression in the Hu-H1 cells was significantly greater than that in the control cells (p<0.01, p value were 0.0074 and 0.009 respectively), while anti-apoptotic Bcl-2 expression in the Hu-H1 cells was significantly lower than that in the control cells (p<0.05, p value were 0.047 and 0.007 respectively). Here, BCL2 is linked to infection.