急性呼吸道感染 (ＡＲＩ)是儿科最常见的疾病 ,而细菌和病毒是儿童呼吸道感染主要的致病病原体 ,正确快速地鉴别两者对临床治疗意义重大 ,在急性感染中 ,临床常用白细胞总数和中性粒细胞均明显增高作为诊断细菌性感染最普遍的指标 ,反之为病毒性感染。本文对 69例正常小儿和 1 Acute respiratory infection (ARI) is the most common pediatric diseases, and bacteria and viruses are the main causative pathogens of respiratory tract infections in children, the correct and rapid identification of both clinically important, in the acute infection, the clinical common white blood cells and the total Granulocytes were significantly increased as the most common diagnosis of bacterial infections indicators, on the contrary is a viral infection. This article on 69 cases of normal children and 1