All children in Scotland from the age of two are being offered immunisation against the flu this year.
Parents and carers are being urged to get their two, three, four and five-year-old kids vaccinated amid fears that immunity levels may be lower this year.
The vaccine is not a jab, instead it is a nasal spray described as “quick and painless”.
Letters inviting those with two to five-year-old children to come forward for the vaccine are arriving now with details of where and when they can get immunised.
Scotland’s deputy chief medical officer Nicola Steedman said: “Flu can be serious, even for healthy children and young people.
“That’s why we’re immunising all children aged two up to secondary school pupils in S6 against flu this year.
“With public health restrictions in place last year, everybody, including young children were not exposed to the flu virus and are likely to have lower immunity to flu than in previous years.
“I’d urge all parents and carers to take up the offer of getting the free flu vaccine for their child this year and help stop the spread of flu. The vaccine is safe and offers the best protection we have against flu.”