The virus doesn't respect any borders. Any uncontrolled movement or handling within countries or across borders is a risk factor.

The government has worked hard to strengthen preparedness and prevention efforts and good progress has been made.

Certainly the measures that have been taken [in Vietnam] will have contributed to the [improved] situation, but there may be other factors that we're not yet aware of.

If you risk nothing, then you risk everything

Yes, risk taking is inherently failure-prone. Otherwise, it would be called sure-thing-taking.

Those who respect others have a self respect. Respect those who have a self respect.