“Lower zinc levels at admission correlate with higher inflammation in the course of infection and poorer outcome.”

(zinc) European Society of Clinical Microbiology and Infectious Diseases. Lower zinc levels in the blood are associated with an increased risk of death in patients with COVID-19. Medical Xpress. 23 September 2020. https://medicalxpress.com/news/2020-09-zinc-blood-death-patients-covid-.html