Rotavirus infection in a tertiary hospital: laboratory diagnosis and impact of immunization on pediatric hospitalization

Brazilian Journal of Infectious Diseases

Pereira, Luciane Aparecida¹  Vidal, Luine R¹  Cruz, Cristina¹  Raboni, Sonia Mara¹  Nogueira, Meri B¹  Debur, Maria C²  Almeida, Sergio Monteiro de¹ 

[1] Universidade Federal do Paraná, Brazil;Secretaria Estadual de Saúde do Paraná, Brazil

关键词: rotavirus;    diarrhea;    immunoenzyme techniques;    latex fixation tests;    electrophoresis;    polyacrylamide gel.;   

DOI  :  10.1590/S1413-86702011000300006

来源: Contexto

【 摘 要 】

BACKGROUND AND OBJECTIVES: Rotavirus (RV) is the main etiological agent of diarrhea in childhood; its laboratory diagnosis is crucial to guide the clinical management and prevention of its spread. RV immunization was introduced in Brazilian 6-month-old children in 2006. The present study was aimed to evaluate three methodologies used for human RV detection in stool samples obtained from patients hospitalized due to gastroenteritis in a teaching hospital and report the impact of RV immunizationin hospitalization by diarrhea.
METHODS: 293 stool samples collected in the 2001-2008 period were analyzed by enzyme immunoassay (EIA), latex agglutination (LA) and polyacrylamide gel electrophoresis (PAGE).
RESULTS: Rotavirus was detected in 34.8% of samples by LA assay, 28.3% of samples by EIA assay and in 25.6% of samples by PAGE assay. Considering the PAGE method as gold standard, the sensitivity, specificity and accuracy of EIA were 94.6%, 94.4% and 94.5%, and to LA were 82.6%, 81.6% and 81.9%, respectively.
CONCLUSION: These results indicate that antigen detection by EIA is a rapid, sensitive and specific method, and could be used in large-scale applications for screening stool samples suspected of RV infection. This study showed decreased incidence of RV infection in hospitalized children prior to the implementation of the national immunization program against RV.

【 授权许可】

CC BY-NC-ND