SeraCare is a company that provides quality control tools and reference materials for clinical laboratories and assay development. Their core business involves offering a wide range of products and services, including multiplexed clinical genomics reference standards, serological and molecular quality controls, and immunoassay reagents. Specifically, they specialize in developing and manufacturing reference materials for cancer testing accuracy, such as their Seraseq product line, which includes somatic cancer controls and reference materials for next-generation sequencing (NGS) assays. These materials are designed to mimic real patient samples and help laboratories validate and implement NGS-based assays for cancer diagnosis, treatment monitoring, and patient stratification.