Perth Royal Infirmary (PRI) has been hit by another outbreak of the winter vomiting bug.
NHS Tayside confirmed Tay Ward, which caters for elderly patients, would not be taking new admissions following several cases of vomiting and diarrhoea, thought to be caused by norovirus.
This comes on the heels of the Perth hospital previously closing wards four and six at the beginning of this month for the same reason. They have since reopened.
The Tay Ward was also temporarily closed in February due to the bug, which can last between 12 to 60 hours.
In addition, Murray Royal Hospital in Perth suffered an outbreak of norovirus in January.
It was established that NHS Tayside had the second highest rate of the winter vomiting bug in Scotland last year, with norovirus infections more than doubled in comparison to the previous year.
The most common symptoms of norovirus are nausea, vomiting and diarrhoea. Symptoms often start with the sudden onset of nausea followed by projectile vomiting and watery diarrhoea.
However, not all of those infected will experience all of the symptoms.
Some people may also have a raised temperature, headaches and sore limbs. Symptoms usually begin around 12 to 48 hours after becoming infected.
A spokesman for NHS Tayside said: ”Tay Ward at Perth Royal Infirmary has been closed to new admissions following several cases of vomiting and diarrhoea which is thought to be caused by norovirus, more commonly known as the winter vomiting bug.
”The medicine for the elderly ward has been closed to new patients as a precautionary measure to prevent the spread of the virus and all appropriate infection control measures have been put in place.”