The flu vaccine is more effective than expected, federal health officials said on Thursday at a special news conference held to discuss the dangerous flu season, which is expected to kill more than 50,000 Americans. This year’s vaccine is about 25% effective against the H3N2 strain of flu that is causing most illnesses and deaths, said Dr. Anne Schuchat, acting director of the Centers for Disease Control and Prevention.Per the NYT. But look at the AP story. The flu vaccine is doing a poor job protecting older Americans and others against the bug that’s causing most illnesses. Preliminary figures released...