According to the National Institute of Allergy and Infectious Diseases, the number of people in the United States with asthma continues to grow. One in 12 people (about 25 million, or 8% of the population) had asthma in 2009, compared with 1 in 14 (about 20 million, or 7%) in 2001. More than half (59%) of children and one-third (33%) of adults who had an asthma attack missed school or work because of asthma in 2008. On average, in 2008 children missed 4 days of school and adults missed 5 days of work because of asthma.
Due to this growing problem, the National Institute of Allergy and Infectious Diseases is asking federal, state, and local officials to support policies that encourage better indoor air quality for schools and workplaces by reducing or eliminating known asthma triggers such as mold, dust, and pollen from the indoor environment.
For more information about this growing problem in the U.S. please visit http://www.niaid.nih.gov/topics/asthma/understanding/Pages/usAsthma.aspx