Pedzisa mutsara unotevera: Pashure pokuguma kwehondo Hirszfeld nomudzimai wake vakadzokera kuWarsaw, uko iye akagadza sangano re serum rakaenzaniswa neEhrlich Institute for Experimental Therapy muFrankfurt. Nokukurumidza akava mutevedzeri womutungamiriri nomukuru wesayenzi weState Hygiene Institute muWarsaw uye, muna 1924, purofesa imomo. Muna 1931 akagadzwa purofesa wenguva dzose paYunivhesiti yeWarsaw uye akashanda pamabhodhi mazhinji epasi rose. Mushure mokunge
Kubatwa kwePoland neuto reGermany Hirszfeld akadzingwa se "asiri-Aryan" kubva kuHygiene Institute asi, kuburikidza nekudzivirirwa kweshamwari, akakwanisa kuita mamwe mabasa ezvesayenzi kumba kusvika Kukadzi 1941; zvisinei, zvaive zvisingaite kuti abudise.