|
|
 القرد الشمبانزى يموت بالأيدز .. !
|
نقلاً عن SCienceNow
Are Wild Chimpanzees Dying from AIDS?
By Jon Cohen
ScienceNOW Daily News
10 February 2009
MONTREAL, CANADA--Researchers have long assumed that SIVcpz, the chimpanzee virus that infected humans and triggered the AIDS epidemic, caused no harm to the apes. But new data presented here today at the 16th Conference on Retroviruses and Opportunistic Infections reveal that wild chimps infected with SIVcpz are more likely to die than uninfected chimps. The animals also show AIDS-like damage to their immune systems. The finding raises the possibility that chimps, too, are suffering from an AIDS epidemic.
More than 40 simian immunodeficiency viruses, or SIVs, infect African primates, yet they rarely cause disease. SIVcpz was discovered in 1989, and it soon became clear that it was closely related to HIV-1 and predated it. Several researchers soon proposed that chimps had long lived with the virus and that their immune systems had evolved to coexist with SIVcpz. But fewer than a dozen SIVcpz-infected chimps were identified until more than a decade later, when researchers led by Beatrice Hahn of the University of Alabama, Birmingham, developed a way to routinely test fecal samples from wild chimps for evidence of the virus. At the conference, Rebecca Rudicell, a graduate student in Hahn's lab, explained that the researchers have now amassed enough data to assess the impact of SIVcpz on wild chimps.
Rudicell, Hahn, and colleagues analyzed more than 1099 fecal samples collected between 2000 and 2008 from chimpanzees living in Gombe Stream National Park, the Tanzanian site that Jane Goodall made famous. From these samples, they found evidence of SIVcpz infection
|
|
 
|
|
|
|
Biraima M Adam
Abd Alla Elhabib
حيدر حسن ميرغني
فيس بوك
تويتر
انستقرام
يوتيوب
بنتيريست