Gene hunt: could DNA predict which babies benefit from albuterol?

This study looks at 400 children aged 3 to 24 months with bronchiolitis, a common lung infection in babies. Researchers want to see if certain genes and physical signs can predict who will improve with a bronchodilator like albuterol. Participants receive either albuterol or a placebo, and their breathing is measured along with genetic samples. The goal is to create a tool that helps doctors decide when these treatments are useful, avoiding unnecessary medication.