IgG
Negative 5 IU/ml or under
Borderline retest 5-9 IU/ml
Positive 10 IU/ml or more
IgM
Negative 0.89 IV
Borderline retest 0.90-1.09 IV
Positive 1.10 IV or more
Reference ranges may be slightly different from lab to lab and country to country.
Vaccination introduces foreign antigen and the body responds by producing antibodies for that specific antigen. So overall levels of antibody may not considerably increase, but antibodies specific for that antigen will increase dramatically.
It is not normal to have a test to detect the level of chickenpox virus in your blood. There is a high level of chickenpox virus in your blood early in the infection. I suspect that you're asking about chickenpox antibody levels in your blood. High levels of antibodies to varicella zoster virus indicates immunity, whether through previous infection or through vaccination.
The antibody levels would increase due to the immune system's memory T-cells that are activated by the second exposure.
The reason why any vaccine needs to be given more than once (excepting the flu vaccine, which changes every year) is that researchers have found the each vaccination will only increase antibody levels by a certain percentage. Repeated "booster" shots increase this antibody production throughout adolescence to attain the optimal level of antibodies considered effective against that disease.
checking antibody levels
Antisera is given to patients because it contains specific antibodies to the tetanus toxin. By binding, antibody to toxin, the toxin is neutralized. Otherwise, the toxin will cause tetanic musscle contractions seen in patients. This antisera causes a much faster response than the toxoid that is used as a vaccination. In this senario, a innactive form of the tetanus toxin (which is a toxoid) is introduced to healthy individuals. This toxoid causes the body (specifically B-cells) to produce antibodies and most importantly memory cells. Individuals who have circulating levels of antibody are considered immune to tetanus because the body will combat the pathogen before it has a chance to produce toxins.
The best way to develop pay system that is acceptable and workable for all levels is basing it on production levels. This will ensure that those who work hard get the deserved pay.
To limit the damage from an accidental explosion to acceptable levels
12% or less
The main diagnostic test that distinguishes common variable immunodeficiency from other immunodeficiency diseases is the low antibody level despite the normal number of B cells. Antibody levels are tested in the serum
If all data fall between 3 Sigma levels, what percentage of the product is acceptable -- defect free?
Although vaccinations are given to children and sometimes adults on a regular schedule, the immunity does not last for a lifetime as originally perceived. Vaccinations usually only protect against diseases for roughly 8 years after the vaccine has been administered.