Download ebook ABC Of Allergies pdf free
The prevalence of diseases associated with atopy has increased in many parts of the world over the past 20 to 30 years. In the United Kingdom the prevalence of diagnosed asthma and symptoms strongly suggestive of asthma in children has increased at a rate of about 5% a year.
Increases of a similar magnitude have been observed in Sweden, Switzerland, Norway, the United States, Australia, New Zealand, and Taipei. Some of this apparent rise may have occurred in response to greater public awareness of asthma and a greater tendency of parents to report wheezing illnesses in their children and to attend their doctor for treatment of asthma.
Few serial surveys have examined an increase in objective markers for asthma, although the prevalence of exercise induced bronchial constriction has increased in Welsh schoolchildren over 15 years, suggesting that the increase in reported symptoms reflects a genuine change in health status.
Few reported serial surveys have examined the prevalence of asthma in adults, although the proportion of military recruits with asthma has increased in Finland, Sweden, and Israel.
Link download ebook ABC Of Allergies pdf free: