So I just watched this video. In it this guy says, and I believe in his logic, that Fear is the number one killer here. Sure this is a novel virus and our immune response is bound to not be ready for it, but he gets into that too.
When Fear takes over, the immune system becomes compromised because the body's fight-or-flight response system takes over all of the energy that the body's immune system would normally use to fight off the virus.
So if you already have any compromising factors in your immune response, then you are already much more likely to be affected by this novel virus, or any virus, and Fear greatly adds to this.
If you can get over being afraid of this virus or its effects, it might help greatly in having your body's immune system be resilient enough to fight it off, as many people's systems are doing effectively.
Not only have many people who were hospitalized with this viral disease recovered from it, but many many people are asymptomatic as their immune systems are strong enough to show no effect whatsoever.
"Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has."-Margaret Mead "The only thing worse than being blind, is having sight but no vision."-Helen Keller