Clinical study on community-acquired adult respiratory tract infection of influenza virus A / 中国实用内科杂志

Objective To describe characteristics of adult respiratory tract influenza virus A (INFA)infection.Method 804 adult patients with acute respiratory tract infections were enrolled and 156 cases of healthy adults were concomitantly selected. Enzyme-linked immunoabsorbent assay was used to measure INFA serum specific IgM antibody.Result (1)In the total patients , 17.6% had positive INFA-IgM,significantly higher than the control(P