The range of infected cells, as determined by the percentage of HBc positive cells at 72 h post-infection (p.i.), ranged in the different replicates from 46% to 70.2% for sample 1 (S1) (mean 55.8% median 54.3%) and 43.3 to 79.3% for sample 2 (S2) (mean 66.2, median 71.6%), respectively. This evidence concerns the gene KRT88P and infection.