The number of parents having their children vaccinated with the MMR jab is still below the target figure of 95%.
A study found that MMR was not linked to autism
Official figures, however, suggest that by the end of 2004, more than 88% of infants had been given the triple injection - a 1.5% rise on 2003.
But vaccination among two-year-olds born in the last three months of 2002 was 88% - 0.2% lower than the previous quarter.
The vaccine has been blamed by some for a rise in childhood autism.
But a major study concluded in September that it was not linked to the illness.
Polio on target
Figures at the time showed the number of parents having their children vaccinated with the MMR jab had remained static.
Ninety five per cent of children need to be immunised to ensure "herd immunity" and prevent outbreaks of measles, mumps or rubella, according to health officials.
The latest figures from NHS Scotland's Information Statistics Division (ISD) show that all other childhood immunisations, such as diphtheria and polio, have a take-up rate in excess of the executive's 95% target.