H1N1 Virus Fears Intensify

A school bus full of mourners came to say goodbye to 14-year-old Michelle Fahle, a high school freshman in the Chicago suburb of Naperville.

"Michelle was just a really fun girl. She loved helping out everyone," said Frances Foley, a friend. "She always welcomed everyone with a smile."

Michelle died from the H1N1 virus, and a previously undiagnosed heart condition. But in San Diego, Calif., an otherwise healthy 5-year-old girl in kindergarten also died from the virus.

"The problem was her heart kept on stopping," said Dr. John Bradley with the Rady Children's Hospital. "She kept needing more and more rounds of medicine, and eventually it became very clear her heart just wasn't going to work."

The Centers for Disease Control and Prevention found about half the people hospitalized from swine flu had no other serious health problems, reports CBS News correspondent Hari Sreenivasan. And the World Health Organization says only 1 percent of patients infected with H1N1 are hospitalized. Of those, 12 to 30 percent need intensive care and 15 to 40 percent of that group die.

"I wish we were able to provide vaccine all through this weekend and all through next week," said Terri Kenkels with the Polk County, Iowa Health Department. "I just wish the supply met the demand."

Long lines around the country for the H1N1 vaccine may continue until next month because vaccine manufacturers are experiencing production delays.

"Eventually, anyone who wants to be vaccinated will be able to be vaccinated," said Dr. Anne Schuchat with the CDC.

For now, hospitals are trying to make sure their workers are vaccinated.

"We have to protect our workforce, and hospitals, we have to be there if people get sick from flu, or other things, to help them," said Dr. David Hopper, with Massachusetts General Hospital.

Even with 41 states now reporting swine flu outbreaks, researchers still don't know this strain of the flu is hurting children so lethally. Normally, 95 percent of flu fatalities are 65 or older.