Monogram Biosciences, Inc. develops and commercializes diagnostic products for the treatment of human immunodeficiency virus (HIV) infection, hepatitis C virus (HCV) infection, and other viral illnesses, as well as cancer and other diseases. It offers HIV tests, including genotypic, phenotypic, tropism, and combined phenotype and genotype assays, suppression management and viral load testing, HCV assays and oncology tests. The company was founded in 1995 and is headquartered in South San Francisco, CA.