Quidel Corp. engages in the development, manufacture and market of rapid diagnostic testing solutions. The company is headquartered in San Diego, California and currently employs 1,224 full-time employees. These diagnostic testing solutions are separated into four product categories: immunoassays, molecular assays, virology and specialty products. The firm sells its products directly to end users and distributors, in each case, for professional use in physician offices, hospitals, clinical laboratories, reference laboratories, universities, retail clinics, pharmacies and wellness screening centers. Its diagnostic solutions aid in the detection and diagnosis of critical diseases and other medical conditions, including infectious diseases, women’s health, gastrointestinal diseases, autoimmune diseases, bone health and thyroid diseases. The firm provides diagnostic testing solutions under various brand names, including Quidel, QuickVue, QuickVue+, MicroVue, FreshCells, D3 FastPoint, Super E-Mix, ELVIS, Sofia, Quidel Molecular, Amplivue, Lyra and Thyretain.