急性上呼吸道感染是小儿最常见的病,全年都可发生,冬春季较多幼儿期发病最多,到学龄期日渐减少病毒和细菌主要侵犯鼻、鼻咽和咽部因此常常也称为急性鼻咽炎(感冒),性咽炎、急性扁桃腺炎等。各种病毒和细菌都可引起上呼吸感染,尤其病毒为多见,约为原发性 Acute upper respiratory tract infection is the most common disease in children, can occur throughout the year, most of the incidence of early childhood in spring and winter, up to the school-age reducing viruses and bacteria mainly infringe the nose, nasopharynx and pharynx and therefore often referred to as acute nasal Pharyngitis (cold), pharyngitis, acute tonsillitis and so on. Various viruses and bacteria can cause upper respiratory infection, especially the virus is more common, about the primary