Christiaens H, et al. - In this monocentric retrospective cohort study, researchers compared the epidemiology of dyspnoea presented to emergency departments (EDs) during and of winter virus season (WVS). Participants included all patients visiting the ED of the Rangueil University Hospital (Toulouse, France) for dyspnoea in September 2016 (off WVS period) and January 2017 (during WVS period). During the WVS period, they noted a doubling of the incidence of patients visiting because of dyspnoea. Significantly older patients with more extensive medical backgrounds and more serious diseases visited the ED because of dyspnoea during WVS period. They realized a large requirement of hospitalization in this time-consuming population, which is possibly responsible for emergency department's overcrowding during epidemics.