CD5 and COVID-19: Within myeloid cells, CD123+CD5− pDCs (CR1: 24, CR2: 28) and CD123+CD5+ pre-DCs (CR1: 28, CR2: 29) were significantly reduced (Bonferroni-adjusted P-value range 0.04–4.11 × 10−6) in individuals recovered from severe and critical COVID-19 (Fig. 6a, b).