Nielsen BioSciences, Inc. is a private, San Diego-based biotechnology company focused on offering medical professionals trusted and valued biological products with wide-ranging applications of cell-mediated immune responses. We are building on a solid foundation of over 40 years developing and delivering antigen-based products. Our research and development leverages heterogeneous antigenic profiles to enlist cell-mediated immunity in the evaluation, treatment, or prevention of diseases. Antigenic diversity enables us to effectively address conditions missed by narrowly targeted strategies