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Children affected by allergies in the developed world: [2] 1 in 13 have eczema; 1 in 8 have allergic rhinitis; 3-6% are affected by food allergy; Children in the United States under 18 years of age: [3] Percent with any allergy: 27.2%; Percent with seasonal allergy: 18.9%; Percent with eczema: 10.8%; Percent with food allergy: 5.8%
The term childhood disease refers to disease that is contracted or becomes symptomatic before the age of 18 or 21 years old. Many of these diseases can also be contracted by adults. Some childhood diseases include:
The lower respiratory tract consists of the trachea (windpipe), bronchial tubes, bronchioles, and the lungs. [6] Lower respiratory tract infections (LRIs) are generally more severe than upper respiratory infections. LRIs are the leading cause of death among all infectious diseases. [7] The two most common LRIs are bronchitis and pneumonia. [8]
In children, influenza and respiratory syncytial virus are the two most common causes of ARDS. [17] About 3–5% of children each year develop otitis media due to influenza. [ 10 ] Adults who develop organ failure from influenza and children who have PIM scores and acute renal failure have higher rates of mortality. [ 17 ]
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In healthy children it may be normal in the absence of any disease to cough ten times a day. [5] The most common cause of an acute or subacute cough is a viral respiratory tract infection. [5] A healthy adult also coughs 18.6 times a day on average, but in the population with respiratory disease the geometric mean frequency is 275 times a day. [6]
Lower respiratory infectious disease is the fifth-leading cause of death and the combined leading infectious cause of death, being responsible for 2.74 million deaths worldwide. [27] This is generally similar to estimates in the 2010 Global Burden of Disease study. [ 28 ]
The World Health Organization (WHO) said last week that officials had requested "detailed information" from China about an "increase in respiratory illnesses and reported clusters of pneumonia in ...