Science
Related: About this forumHIV virus 'has ancient origins'
The origins of HIV can be traced back millions rather than tens of thousands of years, research suggests.
HIV, which causes AIDS, emerged in humans in the 20th Century, but scientists have long known that similar viruses in monkeys and apes have existed for much longer.
A genetic study shows HIV-like viruses arose in African monkeys and apes 5 million to 12 million years ago.
The research may one day lead to a better understanding of HIV and AIDS.
http://www.bbc.co.uk/news/science-environment-21189141
Live and Learn
(12,769 posts)on our planet.
Yo_Mama
(8,303 posts)It's a well-adapted virus in some populations. Apparently not in all:
http://en.wikipedia.org/wiki/Simian_immunodeficiency_virus
xchrom
(108,903 posts)NorthCarolina
(11,197 posts)until the latter portion of the 20th century. Curious.
Javaman
(62,521 posts)as population expands so does industrialization. While HIV has been around forever, it probably existed a in micro-ecosystem which didn't effect much outside that realm. When expansion of the land, to suit population growth increased, the micro-ecosystem it once thrived in, but limited it's growth expansion, allowed it to explode with new avenues for it to spread.
The same effect can be said for various other "new" types of virus that have been recently "discovered". (I use quotes because virus are some of the oldest living organism on the earth)
New forms of hemorrhagic fever are being discovered almost every other year now because of areas of the earth that hadn't been disturbed until now.
It's only going to increase as deforestation increases.
The areas to pay attention to are the Amazon, The Congo Basin, Viet Nam and Cambodia. Those are the hotbeds.
dipsydoodle
(42,239 posts)conveyed that hemorrhagics come from something further down the food chain from monkeys - fruit bats whatever.
Javaman
(62,521 posts)Hemorrhagic fever and perhaps the original host. I read that last year.
The worst part is: with the gross over use of anti-bacterial drugs in the 90's and 2000's the jump in the number of cases involving "super-bugs" has increased dramatically to the point were now there are several strains of once easily dealt with virus that are now immune. MRSA for example scares the living crap out of me.
Marrah_G
(28,581 posts)There is some scary shit out there.
Warpy
(111,255 posts)when people butchered infected bush meat and had open cuts on their hands. Chances are very good that no one in the village knew why they were losing weight so rapidly or why they died. Villages were isolated and there wasn't much chance for the disease to spread.
It wasn't until roads and work camps and the prostitutes that serviced those camps came in that the disease was able to take hold in the general population there, spreading quickly between work camp and the villages.
The best information now says the major jump happened around 1900, give or take 20 years.
undeterred
(34,658 posts)but wasn't identified in labs until the 1980s.
I spent the summer of 1978 in Central African Republic living with missionaries. One of the first things they told me when I got there was that the people had been dying off for over twenty years - they knew there was a new disease other than the regular tropical diseases and that it was sexually transmitted and passed from mother to child. The local people called it "slim disease" because people wasted away and caught other diseases and died. It was very common to eat "bush meat" which included chimpanzees.
So I think there is good reason to think the disease was rampant in Central Africa since the fifties. Nobody paid attention when it was killing people out in the bush where there was no medical care or organized government at all.
and-justice-for-all
(14,765 posts)HIV has been infecting humans since 1850 or 1870.