The BBC is reporting that an outbreak of diarrhea and vomiting at the Commonwealth Games Athletes Village is thought to be the highly-contagious norovirus.
NHS Greater Glasgow and Clyde said 12 workers were "experiencing mild gastrointestinal symptoms".
All 12 have been sent home and told to remain there until they have been clear of symptoms for 48 hours.
Games organizer Glasgow 2014 said it was investigating the cause of the outbreak at the site in Dalmarnock.
Dr Gillian Penrice, consultant in public health medicine for NHS Greater Glasgow and Clyde, said: "Norovirus is the most common stomach bug in the UK and it is common to see the virus in the community. It's usually mild and generally lasts for 24 hours.
Monitoring cases
"The symptoms being experienced by these individuals are mild and none of the 12 are giving any cause for concern as a result of the virus. We are continuing to monitor the situation closely."
Athletes have begun arriving for the Games, which are being held in Glasgow from July 23rd to August 3rd.
A Glasgow 2014 spokesman said: "There have been 12 reports from workforce of diarrhea and vomiting which we are investigating.
"Village residents and workforce have been informed and issued with health information.
"There have been no reports from athletes or team officials and the village is open and operating as normal."
