Risk factors for upper airway diseases.

Upper respiratory infection is the most common reason for seeking medical care for children. Recurrent viral respiratory infections and subsequent complications are a burden for children, their families and society. It has been estimated that at least 6 percent of children younger than 6 yr of age presents recurrent respiratory infections, as consequence of an increased exposure to infectious agents during the first years of life, when immune functions are still immature. Pediatricians must identify risk factors predisposing to upper respiratory tract infections and plan specific preventive strategies, ie avoidance of precocious day-care attendance and secondary smoke. Vaccination against influenza and pneumococcal diseases should always be recommended.

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