According to Foreign Ministry's Spokesperson of Vietnam, from March 12 2020 - The Government’s decision to temporarily suspend visa waiver program for citizens from these countries due to complicated development of the COVID-19 epidemic.
Vietnam had informed the above decision to the relevant countries, namely:
Viet Nam will continue collaborating closely with countries, international organizations and partners in the fight against the epidemic.
Earlier, the Government also decided to temporarily halt unilateral visa exemption for citizens from Italy (on March 2) and South Korea (on February 28) in a bid to contain spread of the virus to Viet Nam.
The Covid-19 outbreak has thus far spread to 127 countries and territories, killing nearly 5,000 people.