Pdgfra-CreERT2 (+/−) mice were infected with MCMVfloxSTOP-GFP via the intraperitoneal route on day 0, fed tamoxifen from −1 to 3 days post infection to activate the Cre recombinase, and sacrificed on day 4 post infection (Fig. 5d). This evidence concerns the gene PDGFRA and infection.