The content of Serum fibronetin(Fn),transferrin(Tf) and immunoglobin(Ig) in 45 cases of infected children and 20 cases of normal ones were measured.

• 本文测定了45例感染儿和20例健康儿血清纤维结合蛋白（Fn）、转铁蛋白（Tf）、免疫球蛋白（Ig）含量。