You are almost certainly underestimating just how much opposition there would be to this if the government tried to do it. I worked in health-adjacent fields f

You are almost certainly underestimating just how much opposition there would be to this if the government tried to do it. I worked in health-adjacent fields for several decades and it took me quite some time to recognize that some of the best ideas for public health are simply non-viable due to political opposition, and "have the government set up an epidemiological wing that does data science on private data to improve health" is definitely one of them.