Lymphatic and Immune Systems Lab Report Example | Topics and Well Written Essays - 250 words

Lymphatic and Immune Systems - Lab Report Example Seroconversion is an element of the immune system. When individuals develop antibodies to HIV, medical experts say that they have seroconvert to antibody-positive from antibody-negative (Marieb & Hoehn, 2010). In a direct ELISA test, an antigen is adsorbed to a synthetic plate and then proteins, in excess, are added to stop all the other binding sites using bovine, serum or albumin (Marieb & Hoehn, 2010). In an indirect ELISA test, the steps are similar only that there is an additional step. After the antigen is adsorbed, the next antibody to be included is the antibody that identifies the antigen, unlike in a direct ELISA test. The two tests are antibodies detecting procedures (Marieb & Hoehn, 2010). However, the Western Blot test is considered as a confirmatory test because it can detect HIV early enough for a patient to receive the crucial treatment. The ELISA test is considered extremely sensitive when it comes to testing for antibodies and that it why most of its test come back positive (Marieb & Hoehn, 2010). However, the Western Blot test takes its time to establish the status of an antibody, and that is why most of its results are