Vaccine failure
From Wikipedia, the free encyclopedia
A vaccine failure is when an organism develops a disease in spite of being vaccinated against it. Primary vaccine failure occurs when an organism's immune system does not produce enough antibodies when first vaccinated. Secondary vaccine failure occurs when an adequate number of antibodies is produced immediately after the vaccination, but the levels fall over time. While antibody levels always fall over time, this would be a more rapid loss of immunity than expected for that vaccine.
[edit] References
 |
This medical article is a stub. You can help Wikipedia by expanding it. |
