Cores - Infectious Disease Research (Cores), a subsidiary of GD Group BV, is a contract research organization specializing in infectious disease research and zoonoses. The company provides a range of bioanalytical services and pre-clinical studies (on pigs), particularly focusing on vaccine development and clinical sample analysis. Cores offers services such as virus and pathogen detection, immunological and clinical assays, and microbiology, and others, utilizing advanced technologies and validated protocols. The company collaborates with various research institutes and industries to support research, vaccine development, and clinical trials. It targets markets in the pharmaceutical and healthcare sectors. Cores is headquartered in Deventer, the Netherlands.