I see. I didn't study it much after checking that my mom (hospitalized twice 4 months apart) and our music teacher at school (3 months apart) were not listed th

I see. I didn't study it much after checking that my mom (hospitalized twice 4 months apart) and our music teacher at school (3 months apart) were not listed there. They use a pretty strict measure for "confirmed" - a case study being published. Care to comment on the studies I've linked?