IDH1/2 mutational status was available only for 32 patients (24 controls and 6 valganciclovir-treated patients); none of the patients included in this study had a mutation in IDH1/2 genes in accordance to the new definition of glioblastoma of the 2021 WHO Classification of Tumors of the Central Nervous System [33]. This evidence concerns the gene IDH1 and glioblastoma.