There is extremely convincing data that HIV originated from similar viruses (simian immunodeficiency virus....of which there are different strains in different primates) endemic to certain type of African primates (at least two different types as shown by NUMEROUS studies.)
By most accounts, the cross-species transmission occured virtually simultaneously and in widely separate locations in Africa. The exact timing of their human introduction has not been established conclusively. Some models suggest it was sometime in the past few hundred years, some models suggest as recently as the early 1950s.
In Africa, especially in areas surrounded by jungle, monkeys are a source of food and are hunted. It is very possible that a mutated form of SIV jumped to humans when the meat was being butchered or eaten. Human-monkey sex is not likely, but is often referenced as way to stigmatize/dehumanize HIV, Africans, and those living with HIV.
For cross species transmissions (zoonotic infections) a variety of things need to occur, and it is very likely that a mutated form of SIV jumped into humans many times over the years but were unable to become infectious from human to human, or died out when the person they infected dies....average number of sexual partners was a lot lower.
Just like with " Bird Flu" epidemic. The bird flu has to mutate from the form in birds and other related animals, to a a form that is infectious to humans (which it has) and secondly needs to mutate again to become able to easily transmit from human to human..... possible pandemic.
HIV replicates so fast (10 billion new viruses daily in an untreated human) and it SUCKS at reproducing exact copies of itself....it can have many mutations that produce stronger, weaker viruses, or viruses immune to the medicines we have. It mutates faster than the common cold virus. So mutations can occur quickly.
Hope this helps
2007-07-06 03:02:01
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answer #1
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answered by BJC 6
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We do not know how many people developed AIDS in the 1970s, or indeed in the years before. Neither do we know, and we probably never will know, where the AIDS virus HIV originated. But what we do know is:
"The dominant feature of this first period was silence, for the human immunodeficiency virus (HIV) was unknown and transmission was not accompanied by signs or symptoms salient enough to be noticed. While rare, sporadic case reports of AIDS and sero-archaeological studies have documented human infections with HIV prior to 1970, available data suggest that the current pandemic started in the mid- to late 1970s. By 1980, HIV had spread to at least five continents (North America, South America, Europe, Africa and Australia). During this period of silence, spread was unchecked by awareness or any preventive action and approximately 100,000-300,000 persons may have been infected."
2007-07-05 02:22:15
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answer #2
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answered by c_crum 4
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The first recognised cases of AIDS occurred in the USA in the early 1980s (more about this period can be found on our history page). A number of gay men in New York and San Francisco suddenly began to develop rare opportunistic infections and cancers that seemed stubbornly resistant to any treatment. At this time, AIDS did not yet have a name, but it quickly became obvious that all the men were suffering from a common syndrome.
2007-07-05 04:26:26
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answer #3
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answered by Christopher P 3
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AIDS did come from a monkey. However, unlike all the stories...it was not from human/monkey sex! What monkey would sit there and take it lol. It most likely came from a monkey bite...or someone eating monkey meat (in Africa)
2007-07-05 05:37:35
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answer #4
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answered by Italiano86 1
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Although there are many stories/guesses of how and from where the disease originated? HIV virus is strongly believed to be originated from Africa around 1940. According to stored records, the first known patient of AIDS disease was from one of the states of Africa in 1959 whose blood was stored in order to find out the possible cause of his death. In tests carried out, the blood is confirmed to contain AIDS virus.
It is believed that the HIV virus inherits its properties from a virus SIV (Simian Immunodeficiency Virus), which is found in monkeys. The AIDS virus also has developed its own characteristics along with those which it inherits from SIV. The SIV virus has exactly same genetic structure as that of HIV and both the viruses are transmitted same way from one host to another. The SIV virus causes AIDS in monkeys and has exactly same effects on them but it does not show any such effect on humans, whereas HIV causes AIDS in humans but not in monkeys. There are again many interesting stories/guesses/hypothesis as how the HIV virus born from the SIV virus? And how SIV virus got mixed in the human blood?
2007-07-05 02:20:26
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answer #5
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answered by Anonymous
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specific. HIV motives AIDS. those distinctive sexual companions might have been contaminated with HIV at present, yet have no indications yet (AIDS). if so they are nevertheless infectious. they'll infect their companions in unprotected intercourse (person Y). Then person Y will infect person X whilst they have unprotected intercourse. and no-one will know that HIV became transfered till many months or years later whilst they discover they have recurrent pneumonias, and docs try for HIV constructive. Takes 3 weeks after exposure for the attempt to teach HIV constructive in case you're contaminated. Use condoms and get examined.
2016-10-19 21:40:05
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answer #6
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answered by kelcey 4
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I don't think they know for sure. The most popular theory is that it came from a mutated monkey virus, kind of in the same way theyr'e worried about Bird flu.
2007-07-05 02:21:13
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answer #7
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answered by Anonymous
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I believe that is the theory - it came from monkeys in Africa. I'm not sure I want to think about that a lot but that is what I understand.
2007-07-05 02:20:38
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answer #8
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answered by Moondog 7
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I believed that the Moneys tranferred HIV virus to people.
2007-07-05 02:20:06
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answer #9
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answered by Anonymous
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It did come from primates in Africa, then later spread to the human population, possibly through blood transaction or such.
2007-07-05 07:21:26
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answer #10
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answered by Anonymous
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