id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-015893-e0fofgxq	Ryhal, Bruce	Viral Disease, Air Pollutants, Nanoparticles, and Asthma	2011-05-03		.txt	text/plain	6327	316	49	Sulfur dioxide, nitrogen dioxide, ozone, and particulate matter in air pollution may • exacerbate asthma, and patients should be cautioned to stay indoors when levels of these irritants are high. A study of children aged 6-8 years with asthma concluded that an asthma exacerbation was of a greater severity if a viral infection was present as opposed to a nonviral illness (7) . Inhaled corticosteroids and leukotriene receptor antagonists (LTRAs) are well known to control the number of wheezing exacerbations in school-age children with chronic persistent asthma, an effect that appears to encompass those episodes caused by viral illness. Viral respiratory infections, and to a lesser extent air pollution, are common triggers of exacerbations and may interact with individuals to affect the development of some forms of asthma. By understanding and anticipating respiratory viral infections and air pollution as important causes of asthma, the health care provider can provide superior care for those who suffer from this chronic disease.	./cache/cord-015893-e0fofgxq.txt	./txt/cord-015893-e0fofgxq.txt