Vero cells are a lineage of cells used in cell cultures.[1] The 'Vero' lineage was isolated from kidney epithelial cells extracted from an African green monkey (Chlorocebus sp.; formerly called Cercopithecus aethiops, this group of monkeys has been split into several different species). The lineage was developed on 27 March 1962 by Yasumura and Kawakita at the Chiba University in Chiba, Japan.[2] The original cell line was named Vero after an abbreviation of verda reno, which means 'green kidney' in Esperanto, while vero itself means 'truth' in Esperanto.[3]