PWH hospitalised due to COVID-19 had higher CD4 + cell counts (380 cells/mm3 [IQR: 184–580] vs. 97 cells/mm3 [IQR: 34–272], p < 0.01) and a higher proportion of virologic suppression (VS) compared to those hospitalised due to non-COVID-19 causes (92% vs. 55%, p < 0.01). This evidence concerns the gene CD4 and COVID-19.