Because the British had no spare factory capacity, being somewhat occupied with WWII at the time.
Howard Florey and Ernst Chain discovered the medicinal uses of penicillin and began to mass produce it in the US.
Howard Florey and Ernst Chain added to the research done by Alexander Fleming and made penicillin safer and easier to make.
penicillin
Penicillin was discovered in 1928 by Alexander Fleming, but wasn't popular until much later with the help of Florey and Chain.
Howard Florey discovered the medical application of Penicillin. Whilst another scientist Fleming discovered that penicillin could kill other micro organisms - it was Florey and Chain who discovered it's use as a medicine and treatment against infection.
It was accidentally discovered in 1928 that penicilliumwould produce penicillin in certain conditions. But it was 1945, after years of work by Florey and Chain, before sufficient stock for mass use could be produced.
Penicillin was discovered in 1928 by Alexander Fleming, but wasn't the usable until about 20 years later with the help of Florey and Chain. Fleming once said, "Nature made Penicillin, i just discovered it."
Fleming discovered that penicillin was a mould that could kill certain types of bacteria that caused disease. The Use of penicillin did not begin until the 1940s when Howard Florey and Ernst Chain made a powder form of penicillin
it was discovered in 1928 by Alexander Fleming. The person that is responsible for the isolation and development of Penicillin is Howard Florey. The person who is credited for discovering penicillin is Alexander Flemming and this took place in 1928. However his interest ended in it after having tested its effectiveness for treating infections in open wounds. 10 years later an Australian named Howard Florey saw the possibility's in penicillin. Florey and his team, Chain, N.G. Heatley, A.D. Gardner, J. Orr Ewing, M.A. Jennings and his wife Ethel Florey published their findings in the Lancet in an article entitled 'Penicillin as a chemotherapeutic agent'. in the Lancet (24 August, 1940), which is held by the National Library. It wasn't until 1941 that Florey and his team tested the drug on a human: In 1945, Florey, Alexander Fleming and Ernst Chain jointly received the Nobel Prize.
Purest form of penicillin got nobel prize in 1945 in medicine . Along with alexander flemming
It was accidentally discovered in 1928 that penicilliumwould produce penicillin in certain conditions. But it was 1945, after years of work by Florey and Chain, before sufficient stock for mass use could be produced.
Penicillin was discovered by Alexander Fleming, in Scotland. His research was later continued by Howard Florey and Ernest Chain in Oxford. All 3 received the Nobel Prize for this discovery in 1945.i dont know please tell me