Yes, if they were missing lots of asymptomatic contagious people, they would not have gotten their outbreak under control. If we assume a few asymptomatic locked-down contacts had false negatives, their numbers are approaching the numbers you would expect given the Diamond Princess data. I cannot see a situation in which there could plausibly be a huge number of missed asymptomatic people given these two data sets...
Yes, if they were missing lots of asymptomatic contagious people, they would not have gotten their outbreak under control. If we assume a few asymptomatic locked-down contacts had false negatives, their numbers are approaching the numbers you would expect given the Diamond Princess data. I cannot see a situation in which there could plausibly be a huge number of missed asymptomatic people given these two data sets...
A simple answer, Masks. They wear them now, we don’t
WHO Guidance that it spreads mostly from surfaces may be entirely wrong.