In 1938, however, Howard Florey and his research team at Oxford University took up the challenge of producing a sufficient quantity of the drug for trials on humans.
Ent aastal 1938 asus Howard Florey Oxfordi ülikooli uurimisrühma eesotsas lahendama keerukat ülesannet saada seda raviainet inimkatsetusteks piisaval määral.