There is an epidemic related to asthmatics that is known as “the September Epidemic.”
Clinical studies show that 25% of hospitalizations for asthma peak 17 days after Labor Day. The reason for this has been linked directly with children returning to school. People are put in an enclosed, climate-controlled space and exposed to more allergens and viruses than they have been all summer. Schools are places where there is more mold, dust mites, cockroaches, mice, and are considered, for some, places of high stress. In addition, there is an increase of viral infections during this time of year, especially rhinovirus which causes colds.