0188

A STUDY ON COMMON VIROLOGY INFECTIONS OF CHILDREN RESPIRATORY TRACT IN GUANGZHOU AREA FROM 1998 TO 2000

Xie Jian Ping, He Cui Juan, Lai Gui Xiang

Guangzhou Children�s Hospital, Guangzhou, China

Objective: To evaluate the situation of respiratory viral infection in Guangzhou area.

Methods: The viral isolation, hemagglutination, hemagglutination inhibition that were processed by throat sawb and part of blood serum.

Results: There were 200 cases were positive with influenza viruses isolated out among 4298 cases of sawbs; among the 200 cases, influenza viruses of upper respiratory tract isolated out172 (86 %). The respiratory syncytial virus (RSV) was isolated out 150 cases among 4289 sawbs; 139 cases belonged to lower respiratory syncytial virus (92.7%). Herpes simples viruses(HSV) was isolated out in 20 cases（0.5%）. The cytomegalovirus was tested among 462 cases of pneumonia and bronchitis. There were 82 cases showed IgM positive. The positive rate of CMV-IgM was 17.7%.

Conclusion: The Influenza virus is the main virus infects upper respiratory tract, RSV and CMV is the main virus of lower respiratory tract infection. The epidemics of influenza was two peaks, one is March-April and July-August in every year. The Herpes simple virus that has been found in sporadic cases of upper and lower respiratory infection.