Childhood asthma is rising

Asthma is the most common chronic disease of childhood, and yet many parents know little about it. Although asthma can occur in people of any age, even in infants, most children with the illness developed it by about age 5.

According to the National health Insurance Corporation, 1.2 million youngsters under age 18 were diagnosed with asthma in 2009, which accounted for nearly half of total 2...