Many people are allergic to pets like rabbits, especially to their fur, saliva, urine, dander as well as dust cages. Quantitative allergen-specific IgE tests are done for a wide range of allergens. An allergic reaction is the result of someone's hyper-activated the immune system against some foreign invaders( allergens). Immunoglobulin E antibody is produced by B-lymphocyte to protect the body from any kind of foreign threat. These IgE antibodies are unique to each type of allergen, hence useful to confirm the specificity of an allergen.