https://www.mercurynews.com/2020/02/19/coronavirus-12-passengers-from-virus-stricken-cruise-ship-now-in-regional-hospitals/

A dozen American passengers evacuated from the ill-fated Diamond Princess cruise ship are being monitored or treated at California hospitals, according to federal health authorities.

Of these, four developed symptoms of the respiratory illness while quarantined at Travis Air Force Base – despite getting an earlier clear bill of health from Japanese and U.S. authorities.