There are three ongoing clinical trials of intravenous vitamin C for people who are hospitalized and seriously ill with COVID-19; two controlled against placebo (China and Canada) and one without control (Italy).
Kuna majaribio matatu ya kiliniki yanayoendelea ya vitamini C ya kupitisha mishipani kwa watu waliolazwa hospitalini na wanaugua sana ugonjwa wa COVID-19; vipozauongo viwili vilivyodhibitiwa (Uchina, Kanada) na moja kisicho dhibitiwa (Italia).