S/O Vaccine Question

[Deleted]

At the risk of sounding like an idiot...I was told by my OB that I am not immune to Rubella and that I will be vaccinated in the hospital after I give birth. My mom swears I was vaccinated...so what gives? Do vaccines wear off?

[drloretta]

Some do, some don't. You may also have been vaccinated and for some reason *in you* it didn't take as well. I'm assuming if the dr said you aren't immune, they did bloodwork and didn't find a significant titer.

You can probably check the AAP or CDC websites to see how long they're supposed to last.

[lmb5109]

My old OB did a blood test and told me I had to get another tdap shot since it was no longer in my system. I'm hoping they checked rubella also!

[anna7602]

Ditto pps, they can tell with a blood test. I found out when I went to grad school that I wasn't immune to measles. I had to get the MMR shot then, after walking around for many years thinking I was protected.

[Deleted]

does your state require you to get a booster MMR when you're in HS? mine did--maybe yours did wear off--no idea.

[dragonfly08]

After a 1990 outbreak, a second vaccination was added to the recommended MMR schedule. So if you were born before that and had only one, you might need the second. When I started college, my schedule was considered up to date. I transferred two years later, and it was during that time they changed the recommendation so to enroll at my new school I was required to have a booster.

That, plus sometimes they do wear off or don't provide maximum immunity, both of which would be reflected by blood work.