Regarding your question, I believe that if you have already had rubella, you may have built up a natural immunity to the virus, even if you were never vaccinated. However, it's not guaranteed that you will be immune for life. It's possible for your immunity to diminish over time
I found this info on an aussie website. HTH:
Most adults have good immunity to rubella, either naturally through experiencing the virus as a child or by being previously vaccinated for rubella. However, being vaccinated against rubella (or even experiencing the rubella virus) does not always guarantee immunity for life and a person may NOT be immune if:
1. Their previous immunity has diminished over time. This means that you may have been immune as a teenager or for an earlier pregnancy, but not immune for a subsequent pregnancy. This is why women need a rubella titre done for each new pregnancy.
2. Their body does not respond in a way to create adequate rubella immunity after a rubella infection or vaccination. The immune reaction may be insufficient or the person remains non-immune, even after experiencing rubella or being vaccinated against it.
If your OB has already done a blood test which has shown you have low immunity, maybe you should consider having a vaccination. Is this what s/he recommended?
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