Study: Fatality rate of bird flu less than 60 percent

February 23, 2012 1:30:12 PM PST
A new study finds bird flu may be more common in humans but less deadly.

It found the Avian flu actually struck many more people worldwide but didn't make them very sick. They think the fatality rate is actually less than 60 percent.

Fears about this strain are so intense that a controversy erupted this year over whether scientists might help bioterrorists by publishing details about their research into bird flu.

The latest research also found it's not likely to mutate easily from person to person.