Mallol J, et al. - In this cross-sectional, international, population-based study in infants aged 12–15 months, researchers analyzed changes in the prevalence and severity of recurrent wheezing (RW) using data obtained from two surveys (S1 and S2, in 2005 and 2012, respectively) administered seven years apart using the same methodology in three large Latin American cities: Curitiba (Brazil), São Paulo (Brazil), and Santiago (Chile). They found that over time, the prevalence and severity of RW during the first year of life was high, with remarkably high rates of Emergency Department (ED) visits, admissions for wheezing and use of asthma medications. Based on the findings, the requirement for considering early asthma diagnosis was realized. Also, an appropriate treatment is required to be established in infants with recurrent and severe asthma-like symptoms.