Delaying measles vax may boost immunity
8th May 2012
Delaying the first childhood measles vaccination from 12 to 15 months of age could confer greater immunity later in life, research suggests.
A study of a 2011 Canadian high-school outbreak found the risk of contracting measles was 3-4 times higher in those who had been first vaccinated at 12 months, compared with 15 months.
In the study, almost 6% of children who had been first vaccinated at 12 months (and given a second dose at 18 months or 4-6 years of age