[hackeer]

where are you getting the info to say only 15-20% percent of the cases show symptoms?

[asdfman123]

I believe reading that 14% of cases are severe, so it sounds roughly accurate. I think a lot more show symptoms, though, even if they're mild.

[jennyyang]

15-20% show severe symptoms, not just "symptoms". 80%+ show mild symptoms or are asymptomatic.