It is VERY stunning news. A huge loss to their economy, which is already in financial trouble.
Watch what they do. Not what they say.
IMO, somebody powerful has called an alarm, backed up with evidence that has caused these governments to pay attention and take action.
my guess is President Trump.
Most likely the WHO is giving some countries a heads up.
Doesn't a pandemic, by definition, rely on widespread human to human transmission in two other countries? If so, South Korea, Italy and Iran are in the running to the other two countries.