主持人 :经过多年的努力 ,我国小儿急性呼吸道感染 (ＡＲＩ)的防治工作取得了很大成效。尤其是病原学的研究 ,正在不断扩展和深入。病原学的研究表明 ,我国小儿ＡＲＩ中 ,病毒感染所占的份额不小 ,特别是上呼吸道感染 (ＵＲＩ) ,病毒尤其重要。专家们指出 ,ＵＲＩ感染部位不同 Moderator: After years of hard work, our prevention and treatment of acute respiratory infection (ARI) in children has achieved great success. In particular, the study of etiology is expanding and deepening. Etiological studies have shown that China’s children ARI, the share of viral infections is not small, especially the upper respiratory tract infection (URI), the virus is particularly important. Experts point out that URI infection site is different