IFNG and COVID-19: No significant differences could be found in terms of IFN-γ concentrations between PLWH with COVID-19 that were undergoing ART and those not receiving ART at the time of admission (COVID+ PLWH not on ART median: 14.76 [IQR: 6.01–23.51] vs. COVID+ PLWH on ART median: 19.47 [IQR: 1.26–37.68], p = 0.810).