Endogenous Deficiency of Glutathione as the Most Likely Cause of Serious Manifestations and Death in COVID 19 Patients ACS Infectious Diseases Diseases with Documented Low Glutathione [70]. Download Scientific Diagram Glutathione deficiency induces epigenetic alterations of vitamin D metabolism genes in the livers of high fat diet fed obese mice Scientific Reports https: pubmed.ncbi.nlm.nih.gov 32463221 # The National Library of Medicine posted : Endogenous Deficiency of Glutathione as the Most Likely Cause of Serious Manifestations and Death in COVID 19 Patients