Aero-allergen sensitization is common in the general population and more likely in males than females except for those aged 10–<15 years, suggests a recent study conducted by a team of researchers from various health institutions in Vienna, Austria. Monitoring of sensitization in children/adolescents may identify environmental triggers related to changes in urbanisation, industrialization and domestic lifestyle. The researchers explained that they evaluated the prevalence and associated factors for positive skin prick tests (SPT) in 1439 children/adolescents and 9844 adults. The research also highlighted that the individuals with doctor´s diagnosed allergy, asthma or parental allergy were more likely to have a positive SPT, and in adulthood, sensitization was more common in those with a high SES.