有d surprise. 大家點體?
“Many people are testing positive on the ship, but that is because we are testing everyone onboard, regardless of their medical condition,” said Shigeru Omi, the chief director of the Japan Community Health Care Organisation.
“And 70% of those testing positive are not showing any symptoms at all.”
About 45% down the page:
https://www.theguardian.com/world/2020/feb/17/coronavirus-japan-braces-for-hundreds-more-cases-as-another-china-city-locked-down
There is little data on the prevalence of asymptomatic cases elsewhere.
I hope researchers will follow-up on this. Some asymptomatic cases seem contagious (as documented before) and 70% infected are asymptomatic, there is probably no hope for containment ???