Take your stinking paws off me, you damned dirty ape!

Skyy God · 05-25-2006, 03:27 PM

HIV's ancestry traced to wild chimps

WASHINGTON - Twenty-five years after the first AIDS cases emerged, scientists have confirmed that the HIV virus plaguing humans really did originate in wild chimpanzees, in a corner of Cameroon.

Solving the mystery of HIV's ancestry was dirty work. Scientists employed trackers to plunge through dense jungle and collect the fresh feces of wild apes — more than 1,300 samples in all.

Before that, it took seven years of research just to develop the testing methods to genetically trace the primate version of the virus in living wild chimps without hurting the endangered species.

Until now, "no one was able to look. No one had the tools," said Dr. Beatrice Hahn of the University of Alabama at Birmingham. She led the team of international researchers that reported the success in Friday's edition of the journal Science.

"We're 25 years into this pandemic," Hahn said. "We don't have a cure. We don't have a vaccine. But we know where it came from. At least we can make a check mark on one of those."

Scientists long have known that nonhuman primates carry their own version of the AIDS virus, called SIV or simian immunodeficiency virus. But with one exception, it had been found only in captive chimpanzees, particularly a subspecies that in the wild populates mostly West Africa.

It was not known how prevalent the virus was in chimps in the wild, or how genetically or geographically diverse it was, complicating efforts to pin down the jump from animal to man.

Hahn's team tested chimp feces for SIV antibodies, finding them in a subspecies called Pan troglodytes troglodytes in southern Cameroon.

Chimps tend to form geographically distinct communities. By genetically analyzing the feces, researchers could trace individual infected chimps. The team found some chimp communities with infection rates as high as 35 percent, while others had no infection at all.

Every single infected chimp had a common base genetic pattern that indicated a common ancestor, Hahn said.

There are three types of HIV-1, the strain of the human virus responsible for most of the worldwide epidemic. Genetic analysis let Hahn identify chimp communities near Cameroon's Sanaga River whose viral strains are most closely related to the most common of those HIV-1 subtypes.

"The genetic similarity was striking," Hahn said.

The first human known to be infected with HIV was a man from Kinshasa in the nearby country of Congo who had his blood stored in 1959 as part of a medical study, decades before scientists knew the AIDS virus existed.

Presumably, someone in rural Cameroon was bitten by a chimp or was cut while butchering one and became infected with the ape virus. That person passed it to someone else.

The Sanaga River long has been a commercial waterway, for transporting hardwood, ivory and other items to more urban areas. Eventually, someone infected made it to Kinshasa.

"How many different transmission events occurred between that initial hunter and this virus making it to Kinshasa, I don't know. It could have been one, it could have been 10, it could have been 100," Hahn said. "Eventually, it ended up in an urban area, and that's where it really got going."

Somewhere in all that spread, the virus became more deadly to people than it is to chimps, who seldom are bothered much by SIV.

The research seems to settle any question of HIV's origin, said Dr. Anthony Fauci, the National Institutes of Health's AIDS chief.

When tracing a virus' evolution, "it's important to get as close to the source as you can," he said. "It's of historic interest."

http://news.yahoo.com/s/ap/20060525/..._me/chimps_hiv

JimNasium · 05-25-2006, 03:34 PM

I wonder what the prevailing wage is for a dung collecting tracker in Cameroon?

**Donger** · 05-25-2006, 03:34 PM

Quote:

Originally Posted by JimNasium

I wonder what the prevailing wage is for a dung collecting tracker in Cameroon?

I bet they don't get paid shit.

JimNasium · 05-25-2006, 03:36 PM

Quote:

Originally Posted by Donger

I bet they don't get paid shit.

I don't know about that. They could be flush.

JBucc · 05-25-2006, 03:42 PM

So who ****ed a monkey?

JimNasium · 05-25-2006, 03:43 PM

Quote:

Originally Posted by JBucc

So who ****ed a monkey?

NTTAWWT.

kcfanintitanhell · 05-25-2006, 04:16 PM

I read a book called The Hot Zone a few years back, and Kinshasa was also referred to as ground zero of the Ebola virus.

Calcountry · 05-25-2006, 04:43 PM

Quote:

Originally Posted by Donger

I bet they don't get paid shit.

Calcountry · 05-25-2006, 04:49 PM

Quote:

Originally Posted by JimNasium

NTTAWWT.

YTISADUWWT

Yes, there is something absolutely definitely undeniably wrong with that.

Zebedee DuBois · 05-25-2006, 04:59 PM

Quote:

Originally Posted by bunnytrdr

YTISADUWWT

Yes, there is something absolutely definitely undeniably wrong with that.

When you can't be with the one you love, love the one you're with.

JBucc · 05-25-2006, 05:07 PM

Quote:

Originally Posted by JimNasium

NTTAWWT.

I guess it'd be ok in Arkansas, since they would be cousins.

05-25-2006, 03:27 PM
Skyy God 11-5, baby Join Date: Sep 2005 Location: Livin the dream Casino cash: $2191557	Take your stinking paws off me, you damned dirty ape! HIV's ancestry traced to wild chimps WASHINGTON - Twenty-five years after the first AIDS cases emerged, scientists have confirmed that the HIV virus plaguing humans really did originate in wild chimpanzees, in a corner of Cameroon. Solving the mystery of HIV's ancestry was dirty work. Scientists employed trackers to plunge through dense jungle and collect the fresh feces of wild apes — more than 1,300 samples in all. Before that, it took seven years of research just to develop the testing methods to genetically trace the primate version of the virus in living wild chimps without hurting the endangered species. Until now, "no one was able to look. No one had the tools," said Dr. Beatrice Hahn of the University of Alabama at Birmingham. She led the team of international researchers that reported the success in Friday's edition of the journal Science. "We're 25 years into this pandemic," Hahn said. "We don't have a cure. We don't have a vaccine. But we know where it came from. At least we can make a check mark on one of those." Scientists long have known that nonhuman primates carry their own version of the AIDS virus, called SIV or simian immunodeficiency virus. But with one exception, it had been found only in captive chimpanzees, particularly a subspecies that in the wild populates mostly West Africa. It was not known how prevalent the virus was in chimps in the wild, or how genetically or geographically diverse it was, complicating efforts to pin down the jump from animal to man. Hahn's team tested chimp feces for SIV antibodies, finding them in a subspecies called Pan troglodytes troglodytes in southern Cameroon. Chimps tend to form geographically distinct communities. By genetically analyzing the feces, researchers could trace individual infected chimps. The team found some chimp communities with infection rates as high as 35 percent, while others had no infection at all. Every single infected chimp had a common base genetic pattern that indicated a common ancestor, Hahn said. There are three types of HIV-1, the strain of the human virus responsible for most of the worldwide epidemic. Genetic analysis let Hahn identify chimp communities near Cameroon's Sanaga River whose viral strains are most closely related to the most common of those HIV-1 subtypes. "The genetic similarity was striking," Hahn said. The first human known to be infected with HIV was a man from Kinshasa in the nearby country of Congo who had his blood stored in 1959 as part of a medical study, decades before scientists knew the AIDS virus existed. Presumably, someone in rural Cameroon was bitten by a chimp or was cut while butchering one and became infected with the ape virus. That person passed it to someone else. The Sanaga River long has been a commercial waterway, for transporting hardwood, ivory and other items to more urban areas. Eventually, someone infected made it to Kinshasa. "How many different transmission events occurred between that initial hunter and this virus making it to Kinshasa, I don't know. It could have been one, it could have been 10, it could have been 100," Hahn said. "Eventually, it ended up in an urban area, and that's where it really got going." Somewhere in all that spread, the virus became more deadly to people than it is to chimps, who seldom are bothered much by SIV. The research seems to settle any question of HIV's origin, said Dr. Anthony Fauci, the National Institutes of Health's AIDS chief. When tracing a virus' evolution, "it's important to get as close to the source as you can," he said. "It's of historic interest." http://news.yahoo.com/s/ap/20060525/..._me/chimps_hiv
Posts: 22,416

05-25-2006, 03:34 PM	#2
JimNasium Voodoo Chile Join Date: Jan 2001 Location: At the crossroad Casino cash: $2933902	I wonder what the prevailing wage is for a dung collecting tracker in Cameroon?
Posts: 6,872

05-25-2006, 03:42 PM	#5
JBucc MVP Join Date: Oct 2005 Casino cash: $10004952	So who ****ed a monkey?
Posts: 12,016

05-25-2006, 04:16 PM	#7
kcfanintitanhell turd polisher Join Date: Mar 2001 Location: Location, Location!!! Casino cash: $9146780	I read a book called The Hot Zone a few years back, and Kinshasa was also referred to as ground zero of the Ebola virus. __________________ I do not think country was intended to be sung consistently in tune.
Posts: 1,180