A study has shown that blood neutrophils of severe/critical COVID-19 patients (n = 44), were characterized by several markers of immature and immunosuppressive state including decreased surface CD13 expression and increased surface CCR5 expression, compared to blood neutrophils of patients with mild SARS-CoV-2 infection (n = 40) and to non-infected subjects (n = 22) [85]. The gene discussed is CCR5; the disease is COVID-19.