I've had ds (5) and dd (nearly 4) both single-jabbed, mostly because of development concerns about ds. No concerns whatsoever about dd, just thought it was fair to treat both the same.
Dd has now had her follow-up immunity test and the mumps jab hasn't taken. So: does anyone know what research I should be doing to decide whether I should (a) put her back on the interminable single-mumps-jab waiting lists; or (b) give her the ordinary pre-school MMR booster (so for all 3, though she only needs mumps).
Eg: is it likely that if there are no behavioural concerns (at all - quite the opposite) by 4ish, the MMR is unlikely to be a risk?