9 Den kliniske udvikling af gul feber- vaccinen har været et led i udviklingen af en stabiliseret levende svækket gul feber- vaccine afledt af working seed IP/ F2 og i valideringsprocessen for en ny working seed, PV26.
The clinical development of the yellow fever vaccine has been part of the development of a stabilized live attenuated yellow fever vaccine, derived from the working seed IP/F2, and the validation process of a new working seed, PV26.