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The history of penicillin essay
The history of penicillin essay
Essay on penicillin its discovery and how its used
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Penicillin was accidentally discovered when a sloppy scientist left a culture of bacteria for a strange mold to grow on. He noticed that the bacteria was dissolving around the mold. He concluded from this that the mold could help to cure bacterial infections. Penicillin became a widely used substance after the discovery that the scientist made about the bacteria killing mold. According to the article “Not-So-Dumb Luck,” penicillin was discovered when a messy bacteriologist left for vacation sometime in September of 1928, leaving his laboratory a mess. When he returned, he discovered that every dish was covered in mold. While checking to see if any had not been contaminated, he found that a certain petri dish had a rare kind of mold called
The Factor of War in the Development of Penicillin The discovery, development and subsequent use of penicillin can be considered to be one of the most important breakthroughs in medical history. There were many factors, which were involved in the development of penicillin, and it could be argued that war was the most important, but other factors were also responsible. Alexander Fleming was working in London as a bacteriologist in 1928 when he noticed that a growth of a mould called penicillin produced a substance that actually killed the germs he was working on. He realised that this might be very important and a year later he wrote an article about his findings. However, Fleming did not have the facilities or the support to develop and test his idea that penicillin could fight infection, and he didn't develop it further.
Adegoke AA, Tom M, Okoh AI, Jacob S (2010) Studies on multiple antibiotic resistant bacterial isolated from surgical site infection. Scient Res. Essays 5:3876-81.
Years later other scientists were also intrigued by the possibilities of penicillin and produced enough penicillin to prove that it was a useable antibiotic. The scientists from Great Britain were developing all of this during World War II, and unfortunately funding for their drug was unavailable due to the war. They decided to bring their concepts to the United States, and once enough was made, it was eventually used, to treat wounded soldiers during World War I.
“Antibiotics" is the name given to the group of chemicals, particularly in medicine, that stop or inhibit the growth of, microorganisms such as fungi, bacteria, and parasites, or that kill the microorganism. They are, however, completely ineffective against viruses. There are two kinds of antibiotics, namely; bactericides, which interfere with the cell wall or contents of the bacteria, thereby killing it, and bacteriostatics, which prevent the bacteria from reproducing. They are used to treat bacterial infections in humans and animals. Bacteria are microorganisms consisting of single cells, and reproduce by mitosis. They usually live in colonies. Some bacteria and other microorganisms produce antibiotics to kill off other species, making more resources available for the organism making the chemicals. Ironically, it was this that led to the discovery of antibiotics in 1928, when Alexander Fleming noticed that the fungus Penicillium notatum, which had contaminated a sample of pathogenic bacteria, had killed the bacterial colonies in a petri dish.
Throughout history disease has run rampant taking many lives with every passing day. Finding a cure or even just a tool in the battle has been the main focus of scientist throughout time. This focus is what brought us the discovery of antibiotics. Over the years antibiotics have been misused by patients, over prescribed by physicians and have led to resistant strains of bacteria.
, prevention and control in our hospitals, have left South Africa, like the rest of the international community, on the brink of a return to an era of stubbornly resistant pathogenic bacteria towards antibiotics.
The Center for Disease Control (CDC) said, “Each year in the United States, at least two million people become infected with bacteria that are resistant to antibiotics and at least twenty-three thousand people die each year as a direct result of these infections.” (Threat Report 2013) Antibiotics were created to kill bacteria; since they were created, the bacteria have started to become resistant to the antibiotics. Antibiotic resistance is the ability of a microorganism to withstand the effects of an antibiotic. Because of this resistance, I believe that the use of antibiotics have been proven to be more harmful to human health than helpful.
Penicillin, derived from the mold Penicillium, is the first antibiotic to successfully treat bacterial infections on humans. It was accidentally discovered by scientist, Alexander Fleming. While Fleming was growing Staphylococcus, a serious and often deadly infection, in a dish, he noticed the bacteria had stopped growing after a mold found its way
The controversy regarding the sub-therapeutic use of antibiotics in animal feeds is that “super-bugs” are able to evolve. This is a threat to both the health of the animals and humans. What a “super-bug” refers to is a strain of bacteria that has evolved to be resistant to bacteria and lethal to the host organism. These super-bugs account for the death of roughly 48,000 Americans each year (Adams, 2013). These superbugs proliferate in the digestive tracts of hosts. Each dose of antibiotics in the animals’ diets at sub-therapeutic levels increases the likelihood of antibiotic resistance bacteria to evolve. The antibiotics kill the antibiotic sensitive bacteria, but bacteria that are resistant proliferate in the gut of the animals. When these antibiotic resistant bacteria are left to grow in the gut, they can cause infection to the animal or people that consume the animal as food (Falco, 2013, Amachawadl et. al. 2013). Antibiotic-resistance can also be conferred through horizontal gene transfer and other methods, making the mere existence of such bacteria a threat that should not be taken lightly.
Antibiotics have been vital tools in the fight against bacterial infections, however their effectiveness has waned in recent times due to the advent of antibiotic resistant strains of bacteria. According to a review by P, the uses of antibiotics, as well as influences from the environment have allowed such bacterial strains to respond to changes in their environment rapidly, and so develop resistance. This acquired ability can have serious and broad implications in the medical field, evident in a study by O into the resistance of intestinal Staphylococcus aureus.
Antibiotic resistance is when certain antibiotics lose their ability to render harmful pathogens inactive. When bacteria become resistant to antibiotics they will continue to grow and multiply without the antibiotics having any effect on them. Bacteria that are resistant to antibiotics are called superbugs because they are very hard to be destroyed within the body.
Discovery and Development of Penicillin. (2014, April 4). Retrieved from American Chemical Society International Historic Chemical Landmarks: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/flemingpenicillin.html
Thesis: With the advent of antibiotics in 1929 Fleming said, "The time may come when penicillin can be bought by anyone in the shops.Then there is the danger that the ignorant man may easily underdose himself and by exposing his microbes to non-lethal quantities of the drug make them resistant."With the overuse of antibiotics today we have seen this very idea come to be.Over usage is caused most prevalently by a lack of education on the part of the patient.Thus stated, the way to overcome such a circumstance is to educate, not only the patient but also the physician.
The discovery of antibiotics is attributed to Alexander Fleming who discovered the first antibiotic to be commercially used (Penicillin) in approximately 1928. An antibiotic, also known as an antimicrobial, is a medication that is taken in order to either destroy or slow the growth rate of bacteria. Antibiotics are integral to the success of many medical practises, such as; surgical procedures, organ transplants, the treatment of cancer and the treatment of the critically ill. (Ramanan Laxminarayan, 2013)
When antibiotics first began to see widespread American usage in the 1940’s, they were heralded as a miracle drug, a description that was not far from the mark considering the great number of debilitating or fatal illnesses that they could rapidly cure. In a time where bacterial diseases that today carry few serious health risks in healthy adults—such as strep throat, ear infections, syphilis, and wound infections—often led to serious debilitation or death, the invention of antibiotics was among the greatest single improvements in public health ever made. And today, more than three quarters of a century after Alexander Fleming discovered the antimicrobial properties of penicillin, antibiotics are as important as ever in maintaining a healthy population, from their ability to treat common infections to the safeguards they provide patients undergoing surgeries and other infection-prone procedures that could otherwise be too risky to perform. However, today many doctors and researchers are beginning to fear that this golden era of antibiotics may be coming to an end due to the ever-increasing threat of antibiotic resistance. There are a number of practices that contribute to increased antibiotic resistance, including the unnecessary prescription, improper dosage, and incorrect usage of antibiotic drugs by humans. But one of the major potential causes of antibiotic resistance does not involve human patients at all. Rather, many believe that the excessive use of antibiotics in food animals is among the leading threats to the future of human ability to fight bacterial infections.