![Alexander Fleming (1881-1955). British microbiologist, discoverer of penicillin (1928). Nobel Prize in Physiology and Medicine in 1945 Stock Photo - Alamy Alexander Fleming (1881-1955). British microbiologist, discoverer of penicillin (1928). Nobel Prize in Physiology and Medicine in 1945 Stock Photo - Alamy](https://c8.alamy.com/comp/P5119C/alexander-fleming-1881-1955-british-microbiologist-discoverer-of-penicillin-1928-nobel-prize-in-physiology-and-medicine-in-1945-P5119C.jpg)
Alexander Fleming (1881-1955). British microbiologist, discoverer of penicillin (1928). Nobel Prize in Physiology and Medicine in 1945 Stock Photo - Alamy
![Alexander Fleming Prix Nobel 1945'. Nobel prize medal awarded to... Fotografía de noticias - Getty Images Alexander Fleming Prix Nobel 1945'. Nobel prize medal awarded to... Fotografía de noticias - Getty Images](https://media.gettyimages.com/id/463911783/es/foto/alexander-fleming-prix-nobel-1945-nobel-prize-medal-awarded-to-bacteriologist-alexander-fleming.jpg?s=1024x1024&w=gi&k=20&c=4XgXd4EX6IYMM2CgKANg8RsFI0Vw-T2zsL3U898rlgQ=)
Alexander Fleming Prix Nobel 1945'. Nobel prize medal awarded to... Fotografía de noticias - Getty Images
![A medal commemorating Alexander Fleming's Nobel Prize win in 1945. Alexander Fleming (1881-1955) a Scottish physician, microbiologist, and pharmacologist. Dated 20th century Stock Photo - Alamy A medal commemorating Alexander Fleming's Nobel Prize win in 1945. Alexander Fleming (1881-1955) a Scottish physician, microbiologist, and pharmacologist. Dated 20th century Stock Photo - Alamy](https://c8.alamy.com/comp/RJJXRF/a-medal-commemorating-alexander-flemings-nobel-prize-win-in-1945-alexander-fleming-1881-1955-a-scottish-physician-microbiologist-and-pharmacologist-dated-20th-century-RJJXRF.jpg)
A medal commemorating Alexander Fleming's Nobel Prize win in 1945. Alexander Fleming (1881-1955) a Scottish physician, microbiologist, and pharmacologist. Dated 20th century Stock Photo - Alamy
![CanalBiblos: blog de la Biblioteca de la Universidad Autónoma de Madrid: Sir Alexander Fleming, Ernst Boris Chain y Sir Howard Walter Florey. Nobel de Medicina 1945. CanalBiblos: blog de la Biblioteca de la Universidad Autónoma de Madrid: Sir Alexander Fleming, Ernst Boris Chain y Sir Howard Walter Florey. Nobel de Medicina 1945.](https://1.bp.blogspot.com/-W9b9zMELaZ4/V_H2b50F8OI/AAAAAAAABPY/7a5cOiFpu9owxG0-52O1EmmFDhIgkePqQCLcB/s1600/fleming.jpg.png)
CanalBiblos: blog de la Biblioteca de la Universidad Autónoma de Madrid: Sir Alexander Fleming, Ernst Boris Chain y Sir Howard Walter Florey. Nobel de Medicina 1945.
![René Muñoz 🇲🇽 on X: "24 Oct 1945 - Alexander Fleming recibe el premio Nobel de Medicina. #KioscoDeLaHistoria https://t.co/mESCCEsTg5" / X René Muñoz 🇲🇽 on X: "24 Oct 1945 - Alexander Fleming recibe el premio Nobel de Medicina. #KioscoDeLaHistoria https://t.co/mESCCEsTg5" / X](https://pbs.twimg.com/media/CSFLXqrUAAExjhS.jpg)
René Muñoz 🇲🇽 on X: "24 Oct 1945 - Alexander Fleming recibe el premio Nobel de Medicina. #KioscoDeLaHistoria https://t.co/mESCCEsTg5" / X
![What Happened on September 15th – A Great Medical Breakthrough, Penicillin | IF I ONLY HAD A TIME MACHINE What Happened on September 15th – A Great Medical Breakthrough, Penicillin | IF I ONLY HAD A TIME MACHINE](https://mholloway63.files.wordpress.com/2013/09/fleming-chain-florey-medicine-1945-7.jpg)
What Happened on September 15th – A Great Medical Breakthrough, Penicillin | IF I ONLY HAD A TIME MACHINE
![Microbios&co.: Nobel en Medicina 1945: Sir Alexander Fleming, Ernst Boris Chain, Sir Howard Walter Florey Microbios&co.: Nobel en Medicina 1945: Sir Alexander Fleming, Ernst Boris Chain, Sir Howard Walter Florey](http://freethoughtblogs.com/pharyngula/files/2015/06/Nobel-Prize.jpeg)