Essay Example | Topics and Well Written Essays - 500 words - 19

judge ExampleThough HIV proved vulnerable to a variety of medicinal treatments in its initial stages, its ability to mutate at a phenomenal rate has allowed it to evade all of the medicines that have been created to fall upon it. HIVs propensity to rapidly evolve has thus far prevented scientists from discovering an effectual vaccine.HIV evolves (mutates) into many another(prenominal) various types of strains in the afflicted system, therefore, the bodys immune system is not able to determine or eradicate the entirety of the virus. This is the problem for the researchers, doctors and the patients. They are attempting to fight a microbial enemy that is unendingly changing and adapting so as to remain resistant to any and all anti-viral medications. The HIV virus, replicating billions of times a day, rear acquire new mutations at lightning speed. Eventually, some of the genetic changes enable the virus to resist even the more or less powerful drugs. These drug-resistant viruses come to dominate the cellular population and threaten the patients life (Structured handling, 2001). HIV has been estimated to have the ability to mutate more than 100 times per day in untreated individuals. As a result drug resistant virus cell mutations are well onward of the particular drug therapy being offered (Shafer, 2004). HIV is difficult to treat because it evolves so rapidly, it outpaces the treatments. When a patient begins victorious an HIV drug, the drug keeps many of the viruses from reproducing, but some survive because they happen to have a certain(a) level of resistance (Zimmer, 2001). Because of HIVs ability to evolve at such a bulky pace, it quickly counters selective treatments. The HIV cells that survive the initial drug infusion multiply and their decedents carry the drug resistant strain. This is the reason that patient drug therapy includes what is commonly