Immunology Related Companies are those developing antibodies, vaccines, and many other products. From vaccines to assay reagents immunology plays a significant role in biotechnology. Antibodies are common diagnostic reagents. Antibodies are also important biotechnology therapeutics. Most recently personalized immuno-therapies have been developed to treat cancer. In these applications individuals T-cells are isolated and engineered (CAR-T) to stimulate immune responses to tumor antigens.