The new infected is one of the eight Vietnamese citizens who returned from the Chinese city of Wuhan on a January 17 Southern China flights.

The latest patient has become the 11th person linked to the 34th case so far.

Tracking down people who are linked with those positive with the virus remains one of measures to prevent contagion.

The man, identified as “patient 18”, was allowed to go home after having tested negative for the coronavirus three times.

Local health experts attributed the high ratio of convalescents (56%) to good treatment largely made through daily online consultation.