s/o vaccines - titers

[cohmom]

Titers have very little meaning. They are a rough estimate of circulating antibodies. A positive titer of any kind means you have some antibodies but does not mean that you will be protected. The science behind "cut-off" values is weak at best. If you are truly worried, opt for getting an additional vaccine.

[earlgreyhot]

I had my checked at the beginning of my last pregnancy (~15 months ago). My MMR was "equivocal" so I got the booster before I left the hospital after delivering. I got a tdap at the end of my last pregnancy as well. I was tested years back for chicken pox and came back as immune (what I was told at least, I realize that may not be the correct terminology).