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1.
Journal of Applied Clinical Pediatrics ; (24)2003.
Artículo en Chino | WPRIM | ID: wpr-639959

RESUMEN

Objective To investigate the clinical spectrum of respiratory viruses in infants and young children with acute lower respiratory infection(ALRI) in Chongqing area from 2003-2007.And to assess the clinical diagnostic value of virus detection in nasopharyngeal secretions(NPS) and serum viral antibody detection for ALRI.Methods Cases of 2 529 specimens of NPS in hospitalized children with ALRI from Apr.2003 to Oct.2007 were taken for detecting 7 common respiratory virus antigens by immunofluorescence assay including respiratory syncytial virus (RSV),adenovirus(ADV),influenza A(IA),influenza B (IB),parainfluenza virus1-3 (PIV1,PIV2,PIV3).Fifty-five thousand eight hundred and eighty-seven samples were tested for ADV-IgM by ELISA.Among those,45 159 cases were further tested for RSV-IgM by ELISA.Results Respiratory virus pathogens were detected in 778 samples out of 2 529(30.76%) including RSV positive in 668 samples (85.86%),PIV3 positive in 75 samples (9.64%),IA positive in 22 samples (2.57%),ADV positive in 15 samples ( 1.93%),only 1 sample ( 0.13%) positive for both PIV1 and RSV. And the positive rate of RSV-IgM was 0.9%-15.2%,and the positive rate for ADV-IgM was about 0.6%-10.6%.RSV infection occured mainly in winter and spring.Conclusions Respiratory virus is the most common pathogen in children with ALRI during the survey period in Chongqing area,especially for RSV infection.The pattern of RSV circulation varied every year with seasonality.It is suggest that this year is peak one for RSV infection from the monthly positive results,especially in Feburary(50%) in 2007.But the infection rate of PIV3,IA,ADV and PIV1 are lower,particularly IB and PIV2 infection have not been seen for the last 5 years.It is fast and accurate to detect RSV antigen and suit to clinical diagnosis by using immunofluorescence assay than other antibody detection.

2.
Journal of Applied Clinical Pediatrics ; (24)1992.
Artículo en Chino | WPRIM | ID: wpr-639114

RESUMEN

Objective To compare the humoral immunity features of acute glomerulonephritis and nephritic syndrome(NS) in children for earlier differential diagnosis and rational administration.Methods Nephelometry was used to determinate the serum level of immunoglobulin(Ig)G,IgA,IgM,C3,C4 in children by England MININEPH machine and correlated reagent. The serum level of IgE was determined by IgE enzyme linked immunosorbent assay(ELISA),assay ELISA kit of America E&ELABSINC company. Immunoturbidimetry and westergren method were used to detect anti-streptolysin O(ASO) and erythrocyte sedimentation rate(ESR),respectively.Results There were significant diffe-rence features of humoral immunity between acute glomerulonephritis and NS in children.IgG,IgA,IgE,C3,C4 had significant difference between acute glomerulonephritis children and healthy children(Pa

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