Report: H1N1 virus symptoms may be more severe - NewsChannel 9 WSYR

"A new report suggests the symptoms from the H1N1 virus may be more severe than previously thought.

Breathing problems are the big concern, and are being reported among the sickest flu patients in Mexico and Canada.

Many of the critically ill patients in both countries were obese, although their death rates weren't higher than others.

Many in both countries also were younger than those typically hard hit by seasonal flu, as has been found in the United States."