“Low-dose hydroxychloroquine combined with zinc and azithromycin was an effective therapeutic approach against COVID-19… Significantly reduced hospitalisation rates in the treatment group… Reduced mortality rates in the treatment group.”
(zinc) Derwand, R., Scholz, M. Zelenko, V. et al. COVID-19 outpatients: early risk-stratified treatment with zinc plus low-dose hydroxychloroquine and azithromycin: a retrospective case series study. International Journal of Antimicrobial Agents. December 2020. https://doi.org/10.1016/j.ijantimicag.2020.106214 .