56 cases of COVID-19 were linked to a man who did not restrict his movements after returning from abroad, health officials have said.
A report from the Department of Public Health in the Mid-West region says the outbreak affected up to 10 households and a sports team.
Health officials have detailed how the outbreak happened, altering key details to protect people's identity.
Image via Department of Public Health, Mid-WestThe 'index case' was abroad on holidays, but did not restrict his movements when he returned home.
He had 'mild symptoms' of COVID-19, including a runny nose and mild sore throat.
However, he checked his temperature and it was normal.
The report explained: "He felt reassured by this and socialised with a group of friends.
"He later tested positive for COVID-19. However, by this stage, he had already infected a number of his friends.
"Three of these friends went on to infect their families."
The man is also said to have a close extended family who visit each other's homes regularly, and several family members got infected.
The report explains: "One of his extended family members who had no symptoms played a match with his local team and a number of his teammates were infected as a result.
"The team members then went on to infect a number of people."
Meanwhile, a friend of the man at the centre of the outbreak felt unwell and contacted her GP to arrange a coronavirus test.
After taking the test in the morning, she 'felt a bit better' by the afternoon and went to a friend's party.
However, she received a positive test after the party - and ultimately infected a number of other people who attended.
Last month, health officials detailed how a couple socialising over a weekend was linked to 30 cases.