Effects of oxidative stress on viral infections: an overview npj Viruses Full article: Glutathione Improves the Antioxidant Activity of Vitamin C in Human Lens and Retinal Epithelial Cells: Implications for Vitreous Substitutes Glutathione and NAC Reduce the Severity of COVID 19 The glutathione peroxidase Gpx4 prevents lipid peroxidation and ferroptosis to sustain Treg cell activation and suppression of antitumor immunity: Cell Reports