Fifty-three paired sera were tested to determine the role of Legionella pneumophila in pediatric, community-acquired, atypical pneumonia.

• 此外为瞭解退伍军人肺炎菌在儿童非典型性肺炎的角色，我们收集53对来自非典型性肺炎病童血清，检验其抗体效价。