Vero cells are derived from the kidney tissue of health adult African green monkeys. Due to their susceptibility to a broad range of viruses and their adaptability to microcarrier-based growth, Vero cells are widely used in viral vaccine production. CD VM 01 is a serum-free, animal-origin–free medium that ensures batch-to-batch consistency. It supports serum-free adherent culture of Vero cells and enables efficient viral production.