A Disease Is A Structural Or Functional Disorder - 1845 Words

A disease is a structural or functional disorder in humans that shows a series of specific symptoms. Though it is up for discussion as to when a disease would be considered new, Levin’s et al. (1994, p. 52-60) suggested, â€Å"A disease is recognized as new when its symptoms are distinct from any disease that has come before†. The enquiry into new diseases and how they come about sheds light into the modern human society in whom the disease might penetrate from. Nevertheless the following essay will put forward how humans are not always the hosts to new diseases and in fact may be imbedded from animal species. Also the main factor that has been contributed is the speed of transportation of these new diseases whether it is within boarders or air†¦show more content†¦Furthermore Ebola was a disease of great popularity in the recent year of 2014 where originality erupted in Guinea. Hayes (2009) describes the instability of Zika Virus and where it originated from i n how it was transported between boarders. Lastly SARS disease will be discussed in depth with reference to symptoms and transportation from person to person. The evolution of Human Immunodeficiency Virus (HIV) was originated from acquired immune deficiency syndrome (AIDS) is a pandemic disease in which creates unembellished harm of body cellular immunity and promotes decrease resistance to infection. This disease was formally predictable in patients of the United States in 1981 and the World Health Organization (WHO) estimated in 1988 that â€Å"five to ten million people worldwide are infected with AIDS† (Hunt 1989 p. 353-373). However the main catalyst of HIV was derived from the original host of an infectious chimpanzee in West Africa referred to as simian immunodeficiency viruses (SIVs) (Sharp Hahn 2010). The recent article ‘The Evolution of HIV-1 and the Origin of AIDS’ illustrated by Sharp and Hahn (2010) proposes that there is a likelihood of transportation of the disease between chimpanzee to human beings through â€Å"exposure to infected blood and body fluids during the butchery of bush meat†. It was put forward, that after years of observation, it was established that women who were diagnosed SIV-positive had a fertility reduction in regards to the