They aren't claiming that this cures the virus. It's purely to treat the cytokine storm that causes most covid deaths. This is for people who are already hospit

They aren't claiming that this cures the virus. It's purely to treat the cytokine storm that causes most covid deaths. This is for people who are already hospitalised and receiving oxygen, with the most dramatic results for those on ventilators. At that point the mortality rate is high enough that the risks of side effects are worthwhile.