A specialist Covid-19 Test and Protect team has been deployed to a Scots primary school after it was hit by the virus.
Health chiefs confirmed contact tracing will be carried out at Lady Alice Primary in Greenock.
There was no confirmation on the numbers of cases or whether staff or pupils are involved.
A NHS Greater Glasgow and Clyde statement read: "At this time there is no evidence of transmission within the school itself.
"To respect and maintain patient confidentiality, no further details will be released."
Health chiefs said experts in public health, education and environmental health have been drafted in to support the school and families affected.
Teams have identified "close contacts" who have been told to self-isolate, they added.
The NHS Greater Glasgow and Clyde statement added: "Robust control measures are in place within the school.
"Apart from those who are identified as close contacts, all other pupils and staff can continue to attend as normal."
Families were urged to stay vigilant and to continue with general measures to help halt the spread of coronavirus, including social distancing, regular hand washing, and looking out for symptoms.
The NHS Greater Glasgow and Clyde statement read: "Our Test and Protect team continues to perform a vital role in contacting those who we believe to be close contacts of confirmed cases.
"Anyone who may have been exposed is being given appropriate advice."
Anyone experiencing one or more of the symptoms should immediately self-isolate and order a test on the NHS inform website www.nhsinform.scot.
