The resistance to antibiotics often occurs because not all bacteria that are part of the same species are alike. These small differences that exist among the bacteria often mean that some will be able to fight off the assault of an antibiotic. When a person's own defenses do not kill off these resistant bacteria then they increase. This antibiotic-resistant form of a disease often re-infects the patient, or is passed on from one person to another. When a person takes an antibiotic for viruses like colds they can cause antibiotic resistant bacteria to develop. Antibiotics have no effect on viruses, but it will kill off harmless and even the beneficial bacteria that live in a person's body. The surviving bacteria will live and multiply and may eventually cause disease. People with bacterial infections, who don't completely finish their antibiotic prescriptions, also allow resistant bacteria to develop. This happens when a small number of semi-resistant bacteria, which needed the full course of antibiotics to kill them, survive. Instead of being a small part of the bacteria that caused the infection, the more resistant bacteria take over when sensitive bacteria are killed off by the antibiotic (Penicillin: the first miracle drug, 2006). It is thought that people can help to slow the formation of antibiotic resistant diseases by understanding the uses and limits that antibiotics have. The first step that people can do is to take all of an antibiotic that they are given and only take antibiotics when they are needed. Research is ongoing...

Experts fell that time is limited because the world's biodiversity is decreasing. This is the source of half of the disease-fighting chemicals that are needed for good health (Penicillin: the first miracle drug, 2006).
The antibiotic of Penicillin was discovered much by accident back in the early 1920's and has sense become the greatest life saver of our time. It has been responsible for saving many peoples lives over the years. Instead of dying from simple bacteria infections like people did in the past they can now be cured. It took several scientists and a few years of research in order to put up with the best formula that could be used to treat these infections. And yet today there are some bacteria that are resistant to antibiotics such as Penicillin. Research is still being done in order to try and come up with something that can be used to fight these infections as well. The practice of medicine is just that- an ongoing practice that is continually working on discovering bigger and better things in order to keep everyone as healthy as possible.

Works Cited

Bellis, Mary. 2009. "The History of Penicillin."

http://inventors.about.com/od/pstartinventions/a/Penicillin.htm>

"Penicillin." n.d.

"Penicillin: the first miracle drug." 2006.

Torok, Simon. 1998. "Maker of the Miracle Mould"

"World Chronology: 1929." 2009. < http://www.answers.com/topic/1929>