CHEYENNE, Wyo. (AP) - Wyoming's state health officer is urging people who spend time around babies to get vaccinated against whooping cough.

WASHINGTON (AP) - A new report finds some 15 million premature babies are born every year - more than 1 in 10 of the world's births and a bigger problem than previously estimated.

ATLANTA (AP) - A new government study suggests a lot of teenage girls are clueless about their chances of getting pregnant.

WASHINGTON (AP) - New research suggests babies don't learn to talk just from hearing sounds - they're lip-readers, too.

MIAMI (AP) - A new study shows the number of uninsured children in the U.S. has dropped by 1 million in the past three years even as the number living in poverty has risen.

BOSTON (AP) - Doctors say that Ritalin and similar medicines that millions of children and teens take to curb hyperactivity and boost attention do not raise their risk of serious heart problems.

ATLANTA (AP) - A government panel is recommending that young boys also get the controversial HPV shot. That's the vaccine now given to girls to prevent cervical cancer.

WASHINGTON (AP) - Half of all teenagers say they're shy but for some it's more than that.

ATLANTA (AP) - A preliminary study suggests the vaccine against whooping cough falters after only about three years, adding support to school rules requiring kids to get the vaccination periodically.

ATLANTA (AP) - A new government study says deaths from the chickenpox have been dramatically reduced, thanks to the vaccine for the disease. And researchers at the Centers for Disease Control and Prevention say the drop has been most significant among children.

(AP) - Young athletes may face a greater danger if they suffer new head blows before they're fully recovered from previous concussions.

CHICAGO (AP) - A new study suggests that food allergies affect more children than government health officials estimate.

WASHINGTON (AP) - Federal health officials are considering adding dosing instructions for children younger than two years old to Children's Tylenol and similar products, a change favored by drugmakers and many doctors.

CHICAGO (AP) - An influential doctors' group says "Facebook depression" is among potential harms to teens who use social networking sites.