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The Centers for Disease Control and Prevention estimate that 1 in 11 children and 1 in 12 adults have asthma in the United States of America. [1] According to the World Health Organization, asthma affects 235 million people worldwide. [2] There are two major categories of asthma: allergic and non-allergic.
The contrast between residents of rural and suburban areas can be seen in a study of Kenya [43] and Ethiopia, [44] where prevalence of asthma is lower in rural areas, and higher in urban areas. A similar trend can be seen in the United States, where an urban-rural gradient shows the increase in the prevalence of asthma closer to the inner city ...
Environmental epidemiology research can inform government policy change, risk management activities, and development of environmental standards. Vulnerability is the summation of all risk and protective factors that ultimately determine whether an individual or subpopulation experiences adverse health outcomes when an exposure to an ...
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In epidemiology, environmental diseases are diseases that can be directly attributed to environmental factors (as distinct from genetic factors or infection). Apart from the true monogenic genetic disorders , which are rare, environment is a major determinant of the development of disease.
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 ...
The idea of a link between parasite infection and immune disorders was first suggested in 1968 [13] before the advent of large scale DNA sequencing techniques.The original formulation of the hygiene hypothesis dates from 1989, when David Strachan proposed that lower incidence of infection in early childhood could be an explanation for the rise in allergic diseases such as asthma and hay fever ...
Specifically, clinical characteristics such as allergy and bronchial hyperresponsiveness that are commonly observed in individuals afflicted with asthma were viewed as likely determinants of the life-threatening disease, COPD (in the Netherlands, the term chronic non-specific lung disease was adopted as an umbrella term for asthma and COPD).