That number I think matches what flu hospitalization is for children. Otoh (not saying you don't know this) viruses don't just "kill" or "not kill". They can

That number I think matches what flu hospitalization is for children. Otoh (not saying you don't know this) viruses don't just "kill" or "not kill". They can have serious, life altering changes on people. So just measuring hospitalization or death isn't that useful.