Consequences of COVID 19 Pandemic on Childhood Asthma

Inclusion Criteria: * Children and adolescents aged 3 to 16 years old * With a medical diagnosis of asthma as per-guidelines, who had been followed-up for at least 6 months, * Assessed in one of the pediatric departments participating in the study, * After written consent of at least one of the 2 parents and/or representative of the parental authority, and of the child if he is older than 8 years old. Criteria for the sub-population assessed at "exacerbation" and second visit: * Children and adolescents aged 3 to 16 years * With a medical diagnosis of asthma as per-guidelines, who had been followed-up for at least 6 months, * Hospitalized for a severe asthma exacerbation (requiring hospitalization and general corticosteroid therapy) at Lille University Hospital * After written consent of both parents and/or representative of the parental authority, and of the child if he is over 8 years old Exclusion Criteria: * History of chronic respiratory disease other than asthma, * Inability of parents to receive informed information, inability to participate in the entire study, refusal to sign the consent form