Flu is surging across most of the U.S. But, amid an early, harsh season, there is a glimmer of promising news: The flu shot may be more effective than experts predicted...

Classic flu symptoms include fevers, body aches and extreme fatigue...

As flu season gets underway, global health experts are increasingly worried about a new strain of the virus that popped up in June - four months after the makeup of this year`s flu shots had been decided...