CD34 and infection: Lau et al. [43] detected all HCMV miRNAs at 4 days post infection (dpi) in CD34+ HPCs and CD14+ monocytes, whereas Pan et al. [44] found that most miRNAs are expressed at very low levels at 10 dpi in CD34+ HPCs, with the exception of miR-UL22A-5p, miR-UL112-3p, and miR-UL148D.