Amongst the many challenges facing animal health, preventing animal diseases is a core mission of the World Organisation for Animal Health (OIE). Immunising animals against diseases thanks to vaccination, when vaccines exist, is the best preventive method to stop their spread. Vaccination has even led to the full eradication of Rinderpest, once a deadly livestock disease. Well aware of the severe health and socio-economic consequences animal diseases can have, the OIE, along with partners and donors, has made a goal to deliver high-quality animal vaccines to countries in need, by setting up vaccine banks.