Who was 'mouldy mary' and what part did she play in the pencillin story?

'Mouldy Mary' was Mary Hunt, a lab assistant who played a crucial role in the discovery of penicillin by Sir Alexander Fleming. She maintained the cultures of Penicillium mold that Fleming used in his experiments, ensuring their viability and purity. Hunt's dedication and attention to detail helped Fleming in isolating and developing the penicillin mold, paving the way for its use as the first antibiotic.