A 1885, Wilhelm Roux cire wani ɓangare na medullary farantin na wani amfrayo kaza da kuma kiyaye shi a cikin wani dumi saline bayani na kwanaki da dama, kafa ka'idar nama al'ada. Ross Granville Harrison, aiki a Johns Hopkins Medical School, sa'an nan kuma a Jami'ar Yale, ya wallafa sakamakon da gwaje-gwajen daga 1907 zuwa 1910, kafa da methodology na nama al'ada. Cell al'ada dabaru sun ci gaba muhimmanci a cikin 1940s da kuma 1950s don tallafa wa bincike a cikin ilimin ƙwayoyin cuta. girma a cell al'adu yarda shiri na tsarkakewa da kwayoyin don masana'antu na maganin alurar riga kafi. A injectable polio cutar da aka ci gaba da Jonas Salk ta hanyar daya daga cikin amfrayo kaza al'ada da kuma kiyaye shi a cikin wani dumi saline bayani na kwanaki da dama, kafa da manufa na nama al'ada.
Shekara ta 1885