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...Global Influenza Surveillance Network (GISN), which allows epidemiological teams to spot new flu viruses as soon as they emerge and get vaccines ready in time. But the GISN only tracks human flu, meaning animal flu can slip by undetected. What's more, pigs that carry influenza tend not to die en masse the way flocks of birds do, eliminating the immediate tip-off that a serious pathogen is at large. None of that is Mexico's fault either. In fact, since human tourists and domesticated animals cross into Mexico all the time, there's every reason to believe that...

Author: /time Magazine | Title: Swine Flu: Don't Blame the Pig | 4/29/2009 | See Source »

Kassis’ test looks to circulating tumor cells—any tumor, no matter how small, sheds tumor cells into the bloodstream. These cells typically die on their own, and are cleaned up by phagocytes—a type of white blood cell. The test examines whether markers of ingested tumor cells are detectable in the patient’s phagocytes. The results are then compared to an non-phagocytic white blood cells, such as lymphocytes. Kassis said that he conceived of this approach due to his background in immunology. While this field is typically far removed from radiology...

Author: By Keshava D. Guha, CONTRIBUTING WRITER | Title: Scientists Develop Novel Cancer Blood Test | 4/28/2009 | See Source »

Analyzing the fossils at this small site, they counted 52 distinct species just below the iridium layer. Then they counted the species above it. The result: the same 52. It wasn't until they sampled 30 feet higher - and 300,000 years later - that they saw the die-offs...

Author: /time Magazine | Title: Maybe an Asteroid Didn't Kill the Dinosaurs | 4/27/2009 | See Source »

...like they say: Comedy is like a frog--you can dissect it, you learn how it works, but it will die in the process. So I never spend a lot of time analyzing why people respond to my work. But I think that it's just the joy, a passion for life, that I think has always been in my characters. Beyond that, I'm just grateful...

Author: /time Magazine | Title: 10 Questions for Michael J. Fox | 4/27/2009 | See Source »

...year and the start of the championship season, Gillespie continues to focus on just doing what he loves.“I love being on the team, and I love running,” he said. “I’ll be running until the day I die. Maybe later...

Author: By Alex Sopko, CONTRIBUTING WRITER | Title: ATHLETE OF THE WEEK: Junior Sets Standard at Penn Relays | 4/27/2009 | See Source »

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