Kuva hajyaho uburyo bwo kuboneza urubyaro bwo mu kanwa mu myaka ya za 1950 kugeza igihe havutse uruhinja rw’ibizamini mu myaka ya za 70 ndetse no gukwirakwiza intama za Dolly mu mpera z'imyaka ya za 90, ikoranabuhanga mu buvuzi bw'imyororokere ryateye intambwe nini Ikoranabuhanga ryifashisha imyororokere ifasha abantu (Ubuhanzi) ahanini ni ikoranabuhanga ryihariye. gufasha abo barwayi batarashoboye gusama nyuma yo kuvurwa buri gihe kugirango bahuze amagi nintanga ngabo muri laboratoire kugirango batwite.Nkuko iri koranabuhanga ritandukanya rwose igitsina nuburumbuke, iterambere ryacyo ryihuse ryazanye kandi ibibazo byimyitwarire, amategeko ndetse n’imibereho, bituma iterambere ryubuhanzi ritandukanye cyane nubundi buvuzi, rihinduka imiti ikura mu mpaka.
Kutabyara ni indwara yimyororokere irangwa no kunanirwa gusama kwa muganga nyuma y'amezi 12 cyangwa arenga imibonano mpuzabitsina isanzwe nta kuboneza urubyaro.Umubare w'uburumbuke ku isi wiyongereye uva kuri 11% mu 1997 ugera kuri 15.4% muri 2018, bikaba biteganijwe ko uziyongera kugera kuri 17.2% muri 2023. Biteganijwe ko ubwiyongere bw'ubugumba muri Amerika buziyongera buva kuri 16% muri 2018 bugera kuri 17.9% muri 2023, mu gihe biteganijwe ko ubwiyongere bw'ubugumba mu Bushinwa buziyongera buva kuri 16.0% muri 2018 bugere kuri 18.2% muri 2023.
