Vietnam's health ministry said all passengers coming from or through China, South Korea, the UK and Schengen countries will be compulsorily quarantined and tested for coronavirus.
"The compulsory quarantine applies to arrivals from March 14," the health ministry said in a statement. "Those whose tests are positive will get immediate treatment while the rest will be quarantined for 14 days."
The ministry in a separate statement said people, including foreigners, were required to wear face masks in public places.
The country has put in place harsh measures to contain the outbreak of the corona virus including the nationwide closedown of Schools. Cinemas, clubs and bars, massage parlours, karaoke shops and online game centres in urban cities were also closed until the end of March.