COVID-19 is proving to be a disease of the immune system. This could, in theory, be controlled.
It is not exactly a disease of the immune system, but some supposedly strong immune systems over-react, as I posted yesterday. Cytokine Storm.
It continues to be apparent that the elderly, overweight, or pre-diabetic/diabetic seem to be most likely to face death with this virus. Those people ought to be protected as best we can, but that's difficult. Most people weather it just fine, if miserable for a while. The luckiest ones (most people) get the sniffles and a headache for a few days and then feel fine.