However, the CD14 expression was significantly diminished in patients with SARS-CoV-2 infection compared to patients without the infection in the Mann–Whitney U test (difference ± SD; 405.90 ± 177.40 MFI; p = 0.03), whereas the counts of the CD16 + monocytes were significantly higher (difference ± SD; 0.07 ± 0.03 per nl; p = 0.01) (Figure 3A,B). Here, CD14 is linked to infection.