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Tracing One Branch of a Pandemic

Scientists follow genetic markers to identify the origins of a widespread strain of the AIDS virus, HIV-1 subtype B.

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SOURCE: Proceedings of the National Academy of Sciences | GRAPHIC BY: Patterson Clark; The Washington Post - November 05, 2007

This Story Scientists Track Time and Place of HIV's Arrival Article \| In the decades since young gay men in the United States started dying from a mysterious syndrome in the 1980s, scientists have wondered how and when the AIDS virus arrived. Many scenarios have been proposed, including one early but now-discounted theory that the disease was imported by a promiscu... Transcript: Science and Medicine: Genetic Path of AIDS Graphic: Tracing One Branch of a Pandemic		TOOLBOX E-Mail This Save/Share + Digg Facebook Reddit Twitter myspace SOURCE: Proceedings of the National Academy of Sciences \| GRAPHIC BY: Patterson Clark; The Washington Post - November 05, 2007 ¬es=Scientists follow genetic markers to identify the origins of a widespread strain of the AIDS virus, HIV-1 subtype B." onclick="if ( typeof otto != 'undefined' ) { }" onmouseover="changebg2('delicious')" onmouseout="resetbg2('delicious')" target="new">del.icio.us SOURCE: Proceedings of the National Academy of Sciences \| GRAPHIC BY: Patterson Clark; The Washington Post - November 05, 2007 \'),\'newstrust\'+(new Date()).getMilliseconds(),\'dependent=no,scrollbars=yes,resizable=yes,alwaysRaised=yes,status=yes,directories=yes,location=yes,menubar=yes,toolbar=yes,width=430,height=750,modal=no\'));ntw.focus();'" onclick="if ( typeof otto != 'undefined' ) { }" onmouseover="changebg2('newstrust')" onmouseout="resetbg2('newstrust')">NewsTrust Stumble It! COMMENT 0 Comments Your browser's settings may be preventing you from commenting on and viewing comments about this item. See instructions for fixing the problem. Discussion Policy CLOSE Comments that include profanity or personal attacks or other inappropriate comments or material will be removed from the site. Additionally, entries that are unsigned or contain "signatures" by someone other than the actual author will be removed. Finally, we will take steps to block users who violate any of our posting standards, terms of use or privacy policies or any other policies governing this site. Please review the full rules governing commentaries and discussions. You are fully responsible for the content that you post. Who's Blogging » Links to this graphic		More on washingtonpost.com • More World News » washingtonpost.com
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