Originally Posted by emma1325
2. Have you ever had your own child's titers tested, and if so, can you offer some details about that?
Yes! Our oldest child was given the MMR at 12 months. We were told he needed a booster for kindergarten, but we delayed all further shots after he was diagnosed with autism.
When he hit puberty, we were told we would need to re-vaccinate him for mumps in particular, because (we were told) if he contracted the mumps during puberty, he could end up with sterility.
We looked into getting a mumps-only vaccine--they were still available then--and found that they were available ONLY in thimerosal-preserved multi-use vials. (BOO.)
So our ped said, well, don't get your hopes up, the vaccine only lasts 5 years or so, that's why they need the booster, but let's do a titer.
He had over 4 times the number of antibodies necessary to be considered immune.
And the reason for the booster is actually because 5% of those who get the MMR don't mount an immune response. The booster for everyone is supposed to catch those 5%. You'd think they'd do titers on everyone, and then only booster those who need it, but they don't sell as many vaccines that way...