One study found that patients with PASC had higher frequencies of CD14+ CD16+ intermediate monocytes, and activated CD38+ HLADR+ myeloid cells, up to 8 months after the initial mild-to-moderate SARS-CoV-2 infection, in comparison with SARS-CoV-2 unexposed controls (Phetsouphanh et al., 2022). This evidence concerns the gene CD14 and long COVID-19.