Hum 300 , History & Methods Of Science

Antibiotics2007After suffering a hole of devastating epidemic attacks and sheaf deaths humanity invented antibiotics and started applying them against know bacteriuml diseases . Using antibiotics for the last 6 decades , we argon now facing the results of the process caused by transmissible changes and mutations in bacterium . This posterior be explained by i of the basic principles of evolution : subjective selection , which suggests that the fittest and the strongest survive , and the weakest disappearBacteria atomic number 18 one-celled organisms , which ar actually vulner able-bodied to mutations . It is known that the close of the mutations affect the organisms . But surely , there atomic number 18 umpteen chances of positive outcomes of mutations as vigorous . Mitosis of bacteria is a very(prenominal) fast process , which brings to fast growth of the population . Having such(prenominal) huge number of bacteria , the chances of positive mutation are higher , therefore , to a greater extent and more bacteria bunghole become resistant to antibiotics treatmentNowadays , contrasting types of pathogen bacteria can already survive the existing antibiotics , and employ an excessive amount of antibiotics we dramatically fastened the process of natural selection in bacteria evolution . This situation threatens the intensity level of traditional treatment methods to bacterial diseases .

That is why world scientists are facing the necessity of busy for new antibiotics , either modifying the known ones or looking for something pitiful differentAccording to the research of the Harvard School of humanity Health , in 2005 .more than 40 of Streptococcus pneumoniae strains in the fall in States could resist both penicillin and erythromycin (Powledge , 2004 The other researches , based on mathematical modeling , sop up that in the nearest coming(prenominal) more and more species of bacteria will be able to resist old antibiotics . whence , if no new antibiotics are available , we ll become etcBibliographyPowledge , T . M (2004 , February 17 . saucily Antibiotics - Resistance Is Futile . PLoS Biol 2 (2 : e53PAGEPAGE 2 AntibioticsPagePAGE...If you want to stick by a full essay, say it on our website: Ordercustompaper.com

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