TL;DR: Some supplements and drugs actually make the infection much worse. "Critically important studies emerging from China suggest that for many patients who die of Covid-19, it may be their own immune system, rather than the virus itself, that deals the fatal blow. This is called a cytokine storm." Elderberry can increase cytokines." https://www.vox.com/2020/3/12/21176...eaths-china-treatment-cytokine-storm-syndrome Turn Off the Cytokine Switch https://www.lifeextension.com/magazine/2014/1/turn-off-the-cytokine-switch The take away: Fish oil and Elderberry MIGHT help to prevent it, but NOT to take it when someone actually has it.