HIV: Vaccine Resistance

Human immunodeficiency virus or human immunodeficiency virus is a disease wish no other. A virus study for more than 30 years, yet no vaccinum was demonstrable. human immunodeficiency virus which causes AIDS (Acquired Immunodeficiency syndrome) was believed to be present in North America, Europe, and Africa for some(prenominal) decades before the soonest cases appeared in 1980 (Mann, 1989). There are some(prenominal) theories behind the roue of human immunodeficiency virus. The simian immunodeficiency virus (SIV) found in chimpanzees, is believed to have been catching to humans becoming human immunodeficiency virus-1, the virus that causes AIDS, a cross species transmission. collect to the origin and nature of HIV, finding a vaccine is kinda difficult. Measles, influenza A, Ebola, HIV, SARS, dengue, and some(prenominal) others viruses have made the tack from a different species to humans. All of which have became epidemics that killed millions. The most new-fan gled virus to make the jump is the avian flue, and in received Asian countries, it is classified as a pandemic. The most widely recognized theory of the origin of HIV, states that humans contracted HIV from eat chimpanzees bush meat. The most controversial theory states HIV actual from contaminated vaccines used in the immunization for polio. The polio vaccine is harvested using monkey kidneys that were contaminated by SIV. This is a credible theory because prior to 1985 there was no trial for SIV.

The HIV virus became more and more complex through with(predicate) constant recombination, and mutations that have been favorable f or it. HIV eventually developed many sub-ty! pes that are resistant to treatment. Vaccines protect individuals by underseal the insubordinate system to recognize disease-causing organisms when they are encountered and destroying them before they become to spread. When a vaccine enters the body, it activates humoral arm of the immune system, which is answerable for the turnout of anti-bodies. Anti-bodies circulate through out... If you want to get a mount essay, order it on our website: BestEssayCheap.com

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