Word: hahn
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Today's panel began with opening remarks by one of the conference coordinators, Judith Hahn. She discussed the goals of the weekend, saying "The question that most people are asking is `What is international development and what are you going to do with...
...mangabey is the natural reservoir of a virus very similar to HIV-2, which causes a milder form of AIDS found largely in western Africa. But the source of HIV-1, the dominant cause of the AIDS pandemic, has remained elusive to virus hunters like Alabama's Dr. Beatrice Hahn. Long on the trail of links between HIV and kindred simian viruses, she jumped at the chance to examine old tissue samples (stored, as it turns out, in a freezer at the National Cancer Institute) from the only chimp in the Air Force colony to have tested positive...
Subjecting these cells from Marilyn's spleen to the sort of genetic wizardry unavailable during the animal's lifetime, Hahn and her colleagues, including Feng Gao, husband George Shaw and Paul Sharp, set about amplifying, sequencing and analyzing Marilyn's virus. Except in the rarest cases, chimps like the sooty mangabeys never show AIDS-like symptoms. Even so, when the researchers compared the viral DNA with the three known types of SIV (simian immunodeficiency virus), they found it had a substantially different genetic makeup. And when they compared Marilyn's genetic makeup with that of other chimps, they determined that...
...researchers, this suggested that the chimp virus had mutated and crossed over to humans on at least three separate occasions, each time finding man a more congenial host than ape. The momentous leaps, Hahn speculates, could have occurred when hunters came in contact with infected blood while butchering chimps for food, a common practice in Africa. As it happens, the first documented case of AIDS goes back to 1959, when a man living in Kinshasa, just across the Congo River from Gabon, home of Marilyn's kin, died of the disease...
...seats. According to Archer, the fact that the hereditary Lords are finally voting to give up their privileges is a proof of their wisdom. If it is, I only wish the Lords had been slightly more clever sooner so that we did not have to wait so long. JIM HAHN Cambridge, England