Although immunoblot analysis with C‐19 also revealed a substantial increase in p53 in HCMV‐infected cells, the levels were not as great as those observed with the former antibody preparations and a biphasic increase was seen with maxima at 3‐9 hours post infection (PI; peak at 6 hours) and 24‐96 hours PI (peak at 72 hours). This evidence concerns the gene TP53 and infection.