Patients were to be diagnosed based on symptoms alone , since nearly all of the circulating flu strains were H1N1 . CDC estimates between 800 and 900 people have died from H1N1 . Between 6,390 and 13,170 -- were 18 - 24 years old , CDC estimates . In a regular flu season , about 1000 people in U.S. die from seasonal flu . 90 percent of those deaths usually are people age 65 and older .
CDC estimates between 800 and 900 people have died from H1N1 . Between 6,390 and 13,170 -- were 18 - 24 years old , CDC estimates . In a regular flu season , about 1000 people in U.S. die from seasonal flu . 90 percent of those deaths usually are people age 65 and older .