Acute respiratory tract Chlamydia infection in adult patients

Objective:To study the distribution of Chlamydia in respiratory infection in adults.Methods:the nasopharynx secretions from 82 adult patients with respiratory tract infection were detected for Chlamydia by monoclonal antibody （McAb） with immunoflurescent assay. At the same time, mycoplasma and other four kinds of virus were also detected. And the special IgG（SIgG） were determined in the double sera of Chlamydia positive patients by indirect immunoflurescent method. Results:（1） 16 patients were Chlamydia postive （20.0%）. （2）The difference of Chlamydia positive rate in different disease groups and age groups showed no significance. （3）The rate of mixed infection was high in the Chlamydia positive patients.（4）The rate of SIgG≥4 fold in the double sera was markedly different （P＜0.05）. Compared the Chlamydia positive group with the controls.Conclusion:Chlamydia is one of the important pathogens of respiratory tract infection in adults. It may cause different forms of acute respiratory tract infection in different age of adults. The mixed infection is characteristic.