The Technology Research Platform VirNext is a spin-off (EZUS Lyon) of the Université Claude Bernard Lyon 1 (UCBL1), which was created within the VirPath laboratory to foster industrial partnerships and enhance translational research. VirNext offers expertise in the field of respiratory viruses and provides a large panel of technologies, including egg and cell-based processes of virus and vaccine antigen production, and several in vivo potency tests. VirNext also provides in vitro, ex vivo (air/liquid cultivated human respiratory epithelium) and in vivo models of infections dedicated to the evaluation of therapeutic compounds and biologic candidates.