In the first phase of the study, standardized questionnaires developed by ISAAC will be applied. It aims to evaluate symptoms suggestive of asthma. The first part of the questionnaire consists of 8 questions which mainly use 3 questions to estimate the prevalence of asthma : 1 - " Did you ever in your life you (or your child ) had wheezing (wheezing )? " , 2 - "In the last twelve months you (or your child ) had wheezing ( wheezing )?" 3 - "Have you ( or your child ) had asthma?".