Director of Quang Nam provincial Health Department Mai Van Muoi said that the infected passengers landed at Da Nang International Airport on four flights. All of them are Vietnamese nationals and they had received two or three vaccine shots against COVID-19.
Eight people were on flight VN99 from the US and three on flight VN417 from the RoK, which landed on December 24. Meanwhile, two persons were on flight VN417 from the RoK and another on flight QH9451 from the RoK, which landed on December 23 and 21, respectively.
Vietnam detected the first infection of the Omicron variant on December 28. The patient returned from the UK on December 19 and was immediately quarantined at Hospital 108 upon arrival.