An entire flight of passengers have been forced to self-isolate after seven people on the flight tested positive for coronavirus.
Seven people who travelled on the TUI flight from Zante to Cardiff on August 25 have since being confirmed to have Covid-19.
Public Health Wales said in a statement on Sunday that the cases are from three different infectious parties who were on board TUI flight 6215 from the island to the Welsh capital.
Everyone who was on the flight is now being ordered to self-isolate at home – reports Wales Online.
Dr Giri Shankar, incident director for the outbreak response at Public Health Wales, said: "Cardiff and Vale Test Trace Protect and Public Health Wales have identified at least seven confirmed cases of Covid-19 from three different parties who were infectious on TUI flight 6215 from Zante to Cardiff on 25 August.
"As a result we are advising that all passengers on this flight are considered close contacts and must self-isolate.
“These passengers will be contacted shortly but, meanwhile, they must self-isolate at home as they may become infectious even without developing symptoms. Anyone with symptoms should book a test without delay."
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Dr Shankar also said that investigations by Public Health Wales "have indicated that a lack of social distancing, in particular by a minority of the 20 to 30-year age group, has resulted in the spread of the virus to other groups of people" and added: “I would make a direct appeal to young people to remember that even if they feel that they would not be badly affected by Covid-19 if they were to test positive for it, if they were to pass it on to older or more vulnerable family members, friends or colleagues it could be extremely serious, even fatal."
Dr Shankar said the virus had not gone away and issued a reminder to follow safety procedures over the bank holiday weekend.
The doctor said: "It remains the responsibility of everyone to help prevent the spread of this virus – that is by self-isolating when asked to do so, staying two metres away from others, and by washing hands regularly.
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“Particularly over this bank holiday weekend, we are also issuing a reminder to everyone of the importance of social distancing to keep everyone in Wales safe."
Spencer Birns, interim CEO of Cardiff Airport, said: "We continue to work closely with all of our airline partners to facilitate passenger travel throughout this challenging time for the industry. TUI is taking every necessary measure following today's report.
"Cardiff Airport is closely following guidelines set out by Public Health Wales, FCO, and UK Government and has already taken a number of measures to ensure the safety and security of our team and customers, which is our number one priority."