Today is World Asthma Day. Experts at Norton Children’s Hospital say asthma is one of the leading causes of emergency room visits for Kentucky children. Norton Children’s Hospital Health and Wellness Coordinator Nikki Boyd says one in ten Kentucky kids have asthma, so do 20 percent of adults. Symptoms can be mild or severe, landing a thousand kids a year in their emergency room. Asthma can be confused with colds or allergies but Boyd says there are symptoms that should prompt action, including wheezing or hard to bounce back from a cold. Other symptoms include shortness of breath, especially after physical activities. Boyd says asthma can be controlled with medication and by identifying what triggers an attack, like smoke, animals or strong aromas, and remove those triggers from the home.