A wide number of bacterium in the environment have learned how to resist antibiotics. Decades of utilise and misuse of antibiotics have caused this crisis through and through the over prescribing of antibiotics by physicians, nimiety use of anti bacteriuml household products by the public, misuse of antibiotics and widespread use of antibiotics in livestock. Antibiotics are everywhere within the environment.
each(prenominal) time a sunrise(prenominal) antibiotic is introduced and used widely, a small number of bacterial organisms interpret how to resist the medicates effects. The bacteria that survive the effects of antibiotics are the most adaptable organisms which generate genome mutations or resistance genes. These genetically changed bacteria multiply to aim a population of antibiotic-immune organisms. The resistant bacteria also scum bag transfer their newly acquired resistance genes to other species of bacteria through the process of conjugation which is a reproductive interaction. As bacteria reproduce and transfer resistance to other bacterial species, new strains develop which rouse resist the effects of existing antibiotics. These antibiotic-resistant organisms are lethal and contagious and have been called superbugs.
(Fisher 2009)
Methicillin-resistant staphylococcus aureus (MRSA) is probably the shell known superbug. First observed in 1960, MRSA continued to append slowly, until doctors realized its significant growth in the 1980s-1990s. MRSA was once eradicated consistently with vancomycin, an antibiotic of the glycopeptide class. With time, the MRSA bacteria became resistant to
vancomycin and vancomycin-resistant staphylococcus aureus (VRSA) was natural! I guess VRSA is MRSAs bastard child.
Enterococci are a group of gram-negative, round-shaped bacteria that commonly live in the gut, although they can cause infection anywhere in the body. They are resistant to several antibiotics, but in the past, physicians could rely on the drug vancomycin to...If you want to get a full essay, cabaret it on our website: Orderessay
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