It is hoped those over the age of 50 will have had their first dose of the Covid-19 vaccine by May, the First Minister has said.
Nicola Sturgeon said more than 2.5 million people will receive either the AstraZeneca or Pfizer vaccine by the end of the spring.
She said: "Our current expectation, based on assumptions about supply and the new advice on doses being administered up to 12 weeks apart, rather than three, is that by early May everyone over 50, and people under 50 with specific underlying conditions, will have received at least the first dose of vaccine."
The First Minister also said that one million people will be vaccinated by the end of January.
Ms Sturgeon today confirmed a legal requirement for people to stay at home except for essential purposes - to come in to force from midnight tonight for the duration of January.
There have been a further 1,905 new coronavirus cases reported in Scotland in the past 24 hours.
The latest Scottish Government statistics showed that 13,810 new tests for Covid-19 that reported results – 15.0% of these were positive.
