Hum 300 , History & Methods Of Science

Antibiotics2007After suffering a lot of devastating epidemic attacks and the great unwashed 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 genetical changes and mutations in bacteria . This fag be explained by oneness of the staple fiber principles of exploitation : natural selection , which suggests that the fittest and the strongest endure , and the weakest disappearBacteria atomic physical body 18 one-celled organisms , which ar rattling vulnerable to mutations . It is known that the approximately of the mutations affect the organisms . But certainly , there are some(a) chances of positive outcomes of mutations as well . Mitosis of bacteria is a in truth fast process , which brings to rapid growth of the population . Having such(prenominal) ample number of bacteria , the chances of positive mutation are high , therefore , more and more bacteria can make resistant to antibiotics treatmentNowadays , different types of pathogen bacteria can already survive the existing antibiotics , and using an excessive amount of antibiotics we dramatically laced the process of natural selection in bacteria evolution . This situation threatens the effectiveness of traditional treatment methods to bacterial diseases .

That is why world scientists are facing the necessity of seek for refreshing antibiotics , either modi fying the known ones or looking for somethin! g abruptly differentAccording to the look for of the Harvard School 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(a) researches , based on mathematical modeling , acquaint that in the nearest future more and more species of bacteria get out be able to resist old antibiotics . whence , 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 want to get a full essay, launch it on our website: BestEssayCheap.com

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