7 doctors weighed in:
If I already have got the rubella vaccine why my rubella IgG is negative ?
7 doctors weighed in

Dr. Paul Carter
Internal Medicine - Allergy & Immunology
4 doctors agree
In brief: Loss of Immunity
Over time the effect of the vaccine may decrease.
This is measurable by checking your IgG level for rubella. A booster may be helpful at restoring your immunity, although it is debatable if it is needed.

In brief: Loss of Immunity
Over time the effect of the vaccine may decrease.
This is measurable by checking your IgG level for rubella. A booster may be helpful at restoring your immunity, although it is debatable if it is needed.
Dr. Paul Carter
Dr. Paul Carter
Thank
Dr. Vivek Huilgol
Internal Medicine - Gastroenterology
2 doctors agree
In brief: Complex issue
Did the vaccine work when first given? You would need to know there was a positive level originally.
If so, over time the antibody may become undetectable. But, immunity may persist via other mechanisms. Booster utility is debatable.

In brief: Complex issue
Did the vaccine work when first given? You would need to know there was a positive level originally.
If so, over time the antibody may become undetectable. But, immunity may persist via other mechanisms. Booster utility is debatable.
Dr. Vivek Huilgol
Dr. Vivek Huilgol
Thank
Get help from a real doctor now
Dr. Jonathan Jassey
Board Certified, Pediatrics
13 years in practice
1M people helped
Continue
108,000 doctors available
Read more answers from doctors