The first World Asthma Day, in 1998, was celebrated in more than 35 countries in conjunction with the first World Asthma Meeting held in Barcelona, Spain. Participation has increased with each World Asthma Day held since then, and the day has become one of the world's most important asthma awareness and education events.
World Asthma Day is an annual event organized by the Global Initiative for Asthma (GINA) to improve asthma awareness and care around the world. World Asthma Day 2015 theme will continue to be "You Can Control Your Asthma." GINA will also continue to use the sub-theme, "It's Time to Control Asthma."