Results from a human trial of a vaccine for avian influenza were released this week. Researchers behind the trial found that the experimental bird flu vaccine works only some of the time, and only at very high doses. So where does that leave us in the event of a pandemic? Is some protection better than none at all?

Plus, a new survey says teens aren't getting enough sleep, and are suffering the consequences. Poll results released this week by the National Sleep Foundation found that even though many sleep experts suggest teens sleep for about nine hours a night, only 20 percent of US teens follow those guidelines. Almost half of the teens surveyed got less than eight hours of shuteye. We'll talk about America's sleep habits, how much sleep is enough, and the problems of balancing busy schedules with the need for rest. Call in with your questions and comments at 1-800-989-8255 (2-3 Eastern). Teachers, find more information about using Science Friday as a classroom resource in the Kids' Connection.

Guests:
John Treanor
Director, Vaccine and Treatment Evaluation Unit
Professor of Medicine and of Microbiology and Immunology
University of Rochester School of Medicine and Dentistry
Rochester, New York

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Mary Carskadon
Director, Bradley Hospital Sleep and Chronobiology Research Laboratory
Professor, Psychiatry and Human Behavior
Brown Medical School
Providence, Rhode Island

Judith Owens, MD
Co-author, "Take Charge of Your Child's Sleep: The All-in-One Resource for Solving Sleep Problems in Kids and Teens" (2005, Marlow & Company)
Director, Pediatric Sleep Disorders Clinic
Hasbro Children's Hospital
Associate Professor, Pediatrics
Brown Medical School
Providence, Rhode Island

Books/Articles Discussed:

"Take Charge of Your Child's Sleep: The All-in-One Resource for Solving Sleep Problems in Kids and Teens" by Jodi Mindell and Judith Owens. Marlow & Company, 2005.

(find books discussed on previous broadcasts)

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This segment produced by Karin Vergoth