The second case is a work pass holder who arrived from the UK on Dec. 7. He ended his 14-day quarantine on Dec. 21 after testing negative on Dec. 17. He later developed body aches and was tested positive for the virus on Dec. 29.
Two people in Singapore who came back from the UK have been preliminarily tested to have a new Covid-19 strain that is circulating there, the Ministry of Health said in a statement.
One of the people that initially tested positive for the potentially more contagious virus strain is a Singapore Airlines Ltd. pilot, who traveled to the UK for work from Dec. 19 to 22. While his test taken on Dec. 23 came back negative, he developed a fever three days later and was confirmed to have Covid-19 on Dec. 29.

