[fspeech]

Read the WHO comment: Guangdong, China, tested 320000 samples with postive rate of 0.15%. So no they did not miss a lot of light cases. The death rate is real, esp for the vunerable population. Medical system will be overwhelmed if this goes unchecked.

[mlyle]

I agree that this is likely true, but it's worth noting the big caveat: sensitivity of the tests are poor, particularly (to an unknown extent) in people with mild disease. Until we have good serological antibody testing it's going to be difficult to quantify.