CX3CR1 and cytomegalovirus infection: Importantly, they exhibited significantly lower CD8 T-cell counts (157.5 vs 522/μL), higher CD4/CD8 ratios (2.99 vs 1.37), lower CX3CR1+CD57+CD8 T-cell counts (17.1 vs 66.8/μL), and higher DIHS/DRESS severity scores than the patients without CMV infections (Fig 2, Supplementary Table II, available via Mendeley at https://data.mendeley.com/datasets/2jdy2wr2bz/1).