ART4 and COVID-19: In molecular docking study, the different iron oxides as Fe2O3 and Fe3O4 are shown to interact with glycoproteins of SARS-CoV-2 necessary to bind with receptors of host cells that inactivate the virus by modifying its glycoproteins.90,91 Generally, COVID-19 can be measured using a reverse transcription-polymerase chain reaction (RT-PCR) test in the laboratory within ∼2 hours.