As bird flu cases rise at a disturbing pace in Turkey, new research offers a bit of hope - it's likely that many people who get it don't become seriously ill and quickly recover. Although not definitive, the new study suggests the virus is more widespread than thought. But it also probably doesn't kill half its victims, a fear based solely on flu cases that have been officially confirmed. "The results suggest that the symptoms most often are relatively mild and that close contact is needed for transmission to humans," wrote Dr. Anna Thorson of Karolinska University Hospital in Stockholm...