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Rates of asthma have plateaued in the developed world since the mid-1990s with recent increases primarily in the developing world. [289] Asthma affects approximately 7% of the population of the United States [203] and 5% of people in the United Kingdom. [290] Canada, Australia and New Zealand have rates of about 14–15%. [291]
Nationally, asthma-associated ER visits were 17% higher than normal during 19 days of wildfire smoke that occurred between late April and early August, according to one CDC study that drew data ...
The World Health Organization (WHO) reports that some 10% of the Swiss population have asthma as of 2007, compared with 2% some 25–30 years ago. [11] In the United States the age-adjusted prevalence of asthma increased from 7.3 to 8.2 percent during the years 2001 through 2009.
U.S. government researchers have found that a widely prescribed asthma drug originally sold by Merck & Co may be linked to serious mental health problems for some patients, according to a ...
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Thunderstorm asthma (also referred to in the media as thunder fever or a pollen bomb [1]) is the triggering of an asthma attack by environmental conditions directly caused by a local thunderstorm. Due to the acute nature of the onset and wide exposure of local populations to the same triggering conditions, severe epidemic thunderstorm asthma ...
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The mechanisms behind allergic asthma—i.e., asthma resulting from an immune response to inhaled allergens—are the best understood of the causal factors. In both people with asthma and people who are free of the disease, inhaled allergens that find their way to the inner airways are ingested by a type of cell known as antigen-presenting ...