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Diamond Princess is interesting when you add up the data

696. 7 deaths 1.04% mortality. Low esp considering age profile BUT 18 serious/ critical.

380 were unsymptomatic- Over 50%.
That gives us a clue about the proportion that may not know they have it unless contact traced
69 more had CV but not know until they returned to the their home country but just 1 died.

What does that tell us about the Japanese test kits given they were supposed to have been tested before they disembarked.
Not so sensitive?
If so what is Japan’s true prevalence?
*asymptomatic
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