In vitro antiviral effect of cinnamon oil, Moringa oleifera extract, Manuka honey, and Nigella sativa oil against SARS-CoV-2 compared to remdesivir. - El-Meidany, Walaa M. R.; Abdel-Gawad, Fagr K.; Mahmoud, Sara H.; Ali, Mohamed A. A. (Bulletin of the National Research Centre, 2023)