The city also saw 11 more cases involving the Omicron variant.
The flights in question have been grounded by the Center for Health Protection for two weeks from Thursday (Dec 30) to January 12, 2022.
They are flight AY101 by Finnair from Helsinki, Finland; flight TK083 by Turkish Airlines from Istanbul, Turkey; and flight 5J272 by Cebu Pacific Air from Manila, the Philippines.
The new imported cases involved a one-year-old boy, and eight men and three women aged 24 to 61. Seven of them including the baby carried the N501Y and T478K mutant strains, suggesting possible Omicron infection.
They arrived from places including the UK, Italy, Spain, Ukraine, the US, the Philippines, Pakistan and Thailand.
A 24-year-old crewman had received one dose of Janssen vaccine in Portugal in September, while three men had received the BioNTech booster jab in November and December.
Except the baby boy, the seven other patients had all received two doses of Covid-19 vaccine. The baby developed symptoms on Boxing Day while all other patients remained asymptomatic.
On the other hand, the center detected 11 Omicron cases, involving eight men and three women aged 21 to 59. Four patients tested positive at the airport, four tested positive during quarantine while the last three tested positive at the community testing centers.
So far there are 81 Omicron cases reported in the city.
Hong Kong's overall Covid tally now stands at 12,631.
Residents of the following places, as well as citizens who had been to there, were reminded to undergo compulsory testing by Friday (Dec 31)
The places include:
- Hong Kong Sports Institute on Yuen Wo Road in Shatin
- Crowne Plaza Hong Kong Kowloon East on Tong Tak Street in Tseung Kwan O
- One South Lane on No. 1 South Lane in Shek Tong Tsui
- Twilight Court, Peninsula Village on 2 Caperidge Drive in Discovery Bay
- Tower 1, The SeaCrest on Hang Kwai Street in Tuen Mun
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