Viral infections of the respiratory tract are common events in all age groups and are the leading cause of mortality in children under 5 years of age in developing countries . These infections cause significant economic burden, with estimated direct and indirect medical costs in the US exceeding $70 billion annually [2, 3]. Children under the age of 5 have an average incidence rate of four to six viral respiratory infections/year and the rate gradually decreases to one to two/year in most adults .
|Original language||English (US)|
|Title of host publication||Family Medicine|
|Subtitle of host publication||Principles and Practice|
|Publisher||Springer International Publishing|
|Number of pages||11|
|State||Published - Jan 1 2016|
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