[revealer]

NUHS tried. Also many traditional drug like hydroxychloroquine. Not much used. They reported at least 46% of them still get infected among the migrants. The vaccine trial test of the 3 vaccines in US is recording only about 1.25% of those Placebo taking saline water got infected. These drugs has worst result than saline water, slightly better than vatimin C.

https://www.nuhs.edu.sg/sites/nuhs/NUHS%...ttings.pdf

https://skyjuiceiswater.blogspot.com/202...nated.html