Medicine is basically process engineering: try some stuff and keep knocking back the worst thing on the pareto chart. Make a note of what worked and do more of

Medicine is basically process engineering: try some stuff and keep knocking back the worst thing on the pareto chart. Make a note of what worked and do more of that but also try other stuff. The other thing I keep wondering about is whether people that are both sensitive and vulnerable have already caught Covid and have either died or recovered. Since we don't know everything about how you catch it it would be hard for the statisticians to control for that effect.