Three wards at the Victoria Infirmary are not admitting new patients due to incidences of diarrhoea and vomiting.
Twelve patients are currently showing symptoms, but none are giving cause for concern due to the diarrhoea and vomiting.
It is routine procedure for wards not to admit new patients as a precautionary measure when three or more people display symptoms of diarrhoea and vomiting.
Dr Syed Ahmed, Consultant in Public Health Medicine with NHS Greater Glasgow, said: "Staff in the hospital have put in place all the relevant control measures to limit the spread of the illness and we are working closely with the hospital infection control team to monitor the situation."
A further update will be issued tomorrow.
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