Sir Alexander Fleming

by Benoît Chaussier & Mathieu Delvaux 

Biography Focus Media

Alexander Fleming was born in a Scottish farm in1881. He and his brothers and sisters spent much of their time ranging through the streams, valleys and moors of the countryside. After completing school he was employed by a shipping firm. In 1900 when the Boer war  broke out between the United Kingdom and its colonies in South Africa Alec joined a Scottish regiment.  This turned out to be as much as a sporting club as anything. 

Soon after this Alec’s uncle died and Alec was encouraged to put his legacy toward the study of medicine. In 1906 he became a researcher in vaccine therapy. In 1909 a German chemist–physician developed a chemical treatment for syphilis. He had tried hundreds of compounds and the” 606 th” worked. It was named salvarsan (which means “that which saves by arsenic”). The only previous treatment had been so toxic as to often kill the patient.

Fleming became one of the very few physicians to administer salvarsan through the technique of intravenous injection. He soon was nicknamed “private 606 “

He wrote many papers on bacteriology, immunology and chemotherapy. He was a specialist in the immune system and during World War I he worked on the antiseptics.

In the case of Infections ,the easiest treatment consisted in washing the infection with copious saline. An idea which was difficult to admit by most surgeons of that time. In 1921 Fleming discovered Lysozyme, a culture of his own nasal mucus, which later brought larger medical applications of this discovery. Fleming’s work paved the way for the discovery of penicillin a few years later in 1928 he was straightening up a pile of Petri dishes where he had been growing bacteria but which had been piled in the sink. He examined each one and discovered that some mold was growing on one of the dishes but that all around the mold, the staph bacteria had been killed. He found out that the mold was from the penicillium family. It took World War II to revitalize interest in penicillin . 

Sir Alexander Fleming was knighted in1944 and awarded the Nobel Prize in 1945.

Dr Fleming died on March 11th in 1955 and is buried in St Paul’s Cathedral.

Focus :

Was Sir Alexander Fleming the first one to discover penicilin ? How does this stuff work on bacteria ? We'll try to make you understand...

Media :

... how penicilin kills bacteria .