Aside from VEGEMITE, what did Aussies Gray & Duhig have that Alexander Fleming totally lacked ? (Moral Fervour)

6 million might have lived

In the Fall of 1943, fifteen years after Nobel Prize winner Alexander Fleming proved that penicillin - at least his method of making penicillin - could NOT save lives, two intrepid Aussies using his very same penicillin strain and his very same methods (right down to the use of Seitz asbestos filter pads) plucked a half dozen patients from the jaws of certain death.