Hello everyone at Steemit, it is an honor for me to write again for you, I want to speak at this opportunity, of a topic that in my opinion is very important, do what is more about our health, but it is not bad to know where a common medicine originates from, such as Penicillin, an antibiotic that we should always have in our first aid kit.

Penicillin was one of the first antibiotics that were invented and also one of the most widely used in the world. For years, thanks to the discoveries of its creator Alexander Fleming, antibiotics based on penicillin have saved the lives of millions of people, which is why this invention is one of the most important in history. It is not necessary to add much more, today we will talk about what is and how penicillin was discovered.

Penicillin was the first antibiotic used in medicine and its discovery is attributed to Alexander Fleming, who along with other medical scientists won the Nobel Prize for medicine in 1945, a mention more than deserved after such a contribution. The discovery of penicillin occurred in a somewhat casual way and was reported by Fleming himself, who on the morning of September 28, 1928, was studying bacterial cultures in the basement of the St. Mary's Hospital laboratory in London.

Fleming was studying Staphylococcus bacteria by then but, after being away for almost a month from London, he forgot a petri dish containing bacteria near an open window. Returning to his experiments, he found that his experiment had broken down because the samples had become contaminated with a kind of mold that had entered with the wind.

Fleming's blessed curiosity made the scientist, instead of throwing his ruined experiment in the trash, put his petri dish under the microscope. What he observed was that not only the mold had contaminated the entire contents of the plate, but around it, there was a clear, clean area in which the mold had killed the bacteria. After identifying the mold as Penicillium fungi, Fleming was optimistic about the clear results: the Penicillium eliminated the deadly Staphylococcus bacteria once and for all.

Although, soon after, our hero lost a little confidence when questioning about how possible it was to use this fungus as an antibiotic in reality and how safe it was for the human body, his numerous investigations, tests, and clinical trials gave him the necessary security to develop and complete the discovery. At this point, much had to do with his university colleagues, including Sir Howard Florey and Ernst Chain, both from the University of Oxford and with whom he shares the Nobel Prize.

Finally, after Fleming's colleagues demonstrated that penicillin could be used perfectly in humans as an antibiotic, it was first tested in humans. Orvan Hess and Bumstead Juan were the first people to use penicillin as an antibiotic and the results were a complete success. Since then, penicillin antibiotics have saved a huge number of lives around the world.

Well, very interesting, do not you think? The way in which Fleming made his discovery is simply fascinating.