Laazaazia O, Ouladlahsen A, Aqillouch S, Altawalah H, Noureddine R, Sarih M, Pineau P, Maaroufi A, Lkhider M, Ezzikouri S (2025) Expression analysis of DDC, dACE2, and EPO genes in Moroccan COVID-19 patients: links to viral load and demographics. J Infect Dev Ctries 19:1299–1307. doi: 10.3855/jidc.21079