Oswald Avery

Oswald Avery and the Avery-McLeod-McCarthy Experiment

Oswald Avery and the Avery-McLeod-McCarthy Experiment

On February 1, 1944, physician and medical researcher Oswald Avery together with his colleagues Colin MacLeod and Maclyn McCarty announced that DNA is the hereditary agent in a virus that would transform a virus from a harmless to a pathogenic version. This study was a key work in modern bacteriology. Prelude – The Griffith Experiment The achievement by the scientists Avery, MacLeod, and McCarty were based on Frederick Griffith’s studies on bacteria,…
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René Dubos and the Antibiotics

René Dubos and the Antibiotics

On February 20, 1901, French-born American microbiologist, experimental pathologist, environmentalist, humanist, and winner of the Pulitzer Prize René Jules Dubos was born. Dubos is credited for having made famous Jacques Ellul‘s environmental maxim, “Think globally, act locally” (penser global, agir local). In Research, he is best known for his pioneer work in isolating antibacterial substances from certain soil microorganisms and the discovery of major antibiotic. Dubos was born in Saint-Brice-sous-Forêt, France, and…
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