HIV stands for human immunodeficiency virus, which can lead to AIDS (acquired immunodeficiency syndrome). This is a virus that, according to Centers for Disease Control and Prevention (CDC), that spreads through a person's body and attacks certain specific cells, called "CD4" of "T" cells. If the virus spreads sufficiently throughout the body then it becomes very difficult for the body to fight off infections -- and eventually, the deeper the virus penetrates the body the greater the chances of the person becoming infected with AIDS. This paper reviews the most recent medical care that can (in many cases) keep the virus from spreading; it also reviews the way in which a person can become infected with HIV and the stages that HIV goes through.
Where did HIV originate from?
Scientists believe that chimpanzees in West Africa may have had the HIV and when Africans hunted and killed the infected chimpanzees -- and ate them -- and the blood that humans came into contact with, because it was HIV positive, was the link to infect African humans. The belief is that this could have occurred as far back as the late 19th century. From Africa, according to the CDC, it spread to other parts of the world and apparently was present in the U.S. around the mid-to-late 1970s.
How many people in the U.S. are HIV-positive?
Facts presented by the CDC show that more than 1.1 million Americans are presently dealing with the HIV infection; interestingly "…almost one it 6 are unaware of their infection"...
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