Severe asthma is often misdiagnosed in both adults and children. Misdiagnosis is a missed opportunity to treat the condition effectively, with great consequences to the patient. Recent developments in phenotyping have provided us with the tools to improve diagnosis and treatment of severe asthma.

In the latest instalment of ERS Vision, Professors Guy Brusselle, Andrew Bush and Sally Wenzel explore the issues, recent advances and gaps as we move towards more effective diagnosis and treatment of the condition.