Pregnant women are to be immunised against whooping cough following the worst outbreak of the disease in Scotland for three decades.
The temporary programme has been introduced after cases of the disease, also known as pertussis, soared past the 1,000 mark this month.
Health Protection Scotland has reported 1,037 confirmed cases since the turn of the year, compared to just 61 up to the same date in 2011.
Newborn children cannot normally be vaccinated before the age of eight weeks, but 65 of this year's cases have been in children in the first three months of their lives.
The vaccination for women between the 28th and 38th week of pregnancy will increase their chance of passing on some short-term immunity to their children.
No child has died this year from contracting whooping cough.
Scotland's top doctor, Chief Medical Officer Sir Harry Burns said: "All children are already offered vaccination against the infection when they are eight weeks old and uptake is very high at over 95%.
"However, very young babies cannot be vaccinated and for the first few months of life they are very vulnerable.
"It is vital that when there is more whooping cough circulating we do all we can to protect these new-borns and vaccinating pregnant women is the best way to do that."
Public health minister Michael Matheson explained: "We know that whooping cough is highly contagious and it can be most serious for young babies under the age of one.
"Over recent months we have seen an increase in cases of whooping cough and this vaccination programme aims to give new-born babies the protection they need."
He also urged parents to ensure children are vaccinated against the disease "to help stop further spread of the virus".
Even if women have been vaccinated against the disease before, they are being urged to have the jab to boost their immunity as it can help protect their baby before the child is vaccinated.