If you get croup when you are 2 how likely are you to develop asthma?

Not particularly: True asthma has a genetic component and will emerge over time.Most males that will have a significant form will be symptomatic by a year of age, and a respiratory infection may trigger a flare up. Croup as a common infectious syndrome can bring out asthma, but does not cause it. There are lots of wheezy asthma like problems in childhood that disappear as kids get older.