Understanding the September asthma epidemic.
The highly predictable increase in emergency department visits, hospital admissions, and unscheduled physician consultations for childhood asthma in North America every September is uniquely related to school return. Rhinovirus infection is likely the major trigger, initially affecting asthma in school-age children, followed by similar but lesser increases in asthma morbidity in younger children and in adults. Low use of asthma medications during summer may fuel the epidemic, which may be attenuated by the short-term addition of an effective controller therapy.
Sears
Malcolm R
MR
McMaster University, Hamilton, Ontario, Canada. searsm@mcmaster.ca
Johnston
Neil W
NW
D018927:Anti-Asthmatic Agents / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy / Q000453:epidemiology* / Q000821:virology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D010850:Picornaviridae Infections / Q000453:epidemiology*; D011153:Population; D012621:Seasons
D018927:Anti-Asthmatic Agents