A ward at a children's hospital remains closed to new admissions after some patients tested positive for a highly infectious bug.
The initial decision was taken by bosses at the Royal Hospital for Children in Glasgow last week after cases of rotavirus were detected.
Rotavirus is the most common cause of diarrhoea among infants and young children, although older children and adults can also fall ill from the bug.
NHS Greater Glasgow and Clyde said a fifth patient at the hospital has now tested positive for rotavirus, while four others have been found to have astrovirus, a separate bug with similar symptoms.
Both viruses are "extremely common" among infants and young children, particularly if their immune system is compromised, the health board said.
The ward in question has been closed to any new patients for the time being.
Dr Teresa Inkster, consultant microbiologist, said: "Enhanced infection control precautions are in place and we are continuing to monitor the situation closely.
"I would also urge visitors to remember the importance of hand hygiene when entering and leaving the hospital."
Once someone has been exposed to rotavirus, it can take up to two days for the symptoms to appear.
Children who become infected may have severe diarrhoea, often with vomiting, fever, loss of appetite and abdominal pain which can last from three to eight days.
Why are you making commenting on The Herald only available to subscribers?
It should have been a safe space for informed debate, somewhere for readers to discuss issues around the biggest stories of the day, but all too often the below the line comments on most websites have become bogged down by off-topic discussions and abuse.
heraldscotland.com is tackling this problem by allowing only subscribers to comment.
We are doing this to improve the experience for our loyal readers and we believe it will reduce the ability of trolls and troublemakers, who occasionally find their way onto our site, to abuse our journalists and readers. We also hope it will help the comments section fulfil its promise as a part of Scotland's conversation with itself.
We are lucky at The Herald. We are read by an informed, educated readership who can add their knowledge and insights to our stories.
That is invaluable.
We are making the subscriber-only change to support our valued readers, who tell us they don't want the site cluttered up with irrelevant comments, untruths and abuse.
In the past, the journalist’s job was to collect and distribute information to the audience. Technology means that readers can shape a discussion. We look forward to hearing from you on heraldscotland.com
Comments & Moderation
Readers’ comments: You are personally liable for the content of any comments you upload to this website, so please act responsibly. We do not pre-moderate or monitor readers’ comments appearing on our websites, but we do post-moderate in response to complaints we receive or otherwise when a potential problem comes to our attention. You can make a complaint by using the ‘report this post’ link . We may then apply our discretion under the user terms to amend or delete comments.
Post moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours.
Read the rules here