Hum 300 , History & Methods Of Science

Antibiotics2007After suffering a lot of devastating epidemic attacks and mountain deaths humanity invented antibiotics and started applying them against known bacteriuml diseases . Using antibiotics for the last 6 decades , we ar now facing the results of the move caused by contractable changes and mutations in bacteria . This peck be explained by one of the prefatorial principles of evolution : natural selection , which suggests that the fittest and the strongest survive , and the weakest disappearBacteria ar single-celled organisms , which are very(prenominal) vulnerable to mutations . It is known that the to the highest degree of the mutations affect the organisms . only if certainly , there are near chances of positive outcomes of mutations as well . Mitosis of bacteria is a very fast bear on , which brings to rapi d growth of the population . Having such huge frame of bacteria , the chances of positive mutation are higher , so , more and more bacteria can become insubordinate to antibiotics treatmentNowadays , different types of pathogen bacteria can already survive the vivacious antibiotics , and using an excessive amount of antibiotics we dramatically fastened the process of natural selection in bacteria evolution . This patch threatens the effectiveness of traditional treatment methods to bacterial diseases .

That is why mankind scientists are facing the necessity of inquiring for cutting antibiotics , each modify ing the known ones or looking for something ! dead differentAccording to the research of the Harvard instruct of Public Health , in 2005 .more than 40 of Streptococcus pneumoniae strains in the United States could resist both penicillin and erythromycin (Powledge , 2004 The other researches , base on mathematical modeling , manifest that in the closest future more and more species of bacteria will be able to resist old antibiotics . therefore , if no new antibiotics are available , we ll become etcBibliographyPowledge , T . M (2004 , February 17 . New Antibiotics - Resistance Is Futile . PLoS Biol 2 (2 : e53PAGEPAGE 2 AntibioticsPagePAGE...If you wishing to get a full essay, wander it on our website: OrderCustomPaper.com

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