Scots children aged between 12 and 15 are being urged to get their second Covid-19 vaccine before returning to school from the Christmas holidays.
Health Secretary Humza Yousaf says an increase in vaccination capacity means jags are being offered earlier than originally planned.
Drop-in sessions for the age group who have had their initial vaccine at least 12 weeks ago are starting from Monday.
Those who have scheduled appointments can also now bring these forward.
Mr Yousaf said: "Additional vaccinator capacity across Scotland means we are now in a position to offer second doses to the 12 to 15 age group earlier than previously planned.
"Eligible young people can get their second doses from next week, and before they return to school in many cases.
"I would urge them to take up the offer as early as they can, to receive greater protection from the virus.
"The festive season saw a major effort to get adults boosted by the bells. But we need to keep up momentum and make sure everyone is protected from the virus, particularly with the emergence of the new Omicron variant."
To bring a scheduled appointment forward call the helpline on 0800 030 8013.
Details of where vaccinations are available can be found on the NHS Inform website and local health board websites.
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