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Type: Artigo de periódico
Title: Identification Of Serologic Markers For School-aged Children With Congenital Rubella Syndrome
Author: Hyde
Terri B.; Sato
Helena Keico; Hao
LiJuan; Flannery
Brendan; Zheng
Qi; Wannemuehler
Kathleen; Ciccone
Flavia Helena; Marques
Heloisa de Sousa; YinWeckx
Lily; Safadi
Marco Aurelio; Moraes
Eliane de Oliveira; Pinhata
Marisa Mussi; Neto
Jaime Olbrich; Bevilacqua
Maria Cecilia; Tabith Junior
Alfredo; Monteiro
Tatiana Alves; Figueiredo
Cristina Adelaide; Andrus
Jon K.; Reef
Susan E.; Toscano
Cristiana M.; Castillo-Solorzano
Carlos; Icenogle
Joseph P.
Abstract: Background. Congenital rubella syndrome (CRS) case identification is challenging in older children since laboratory markers of congenital rubella virus (RUBV) infection do not persist beyond age 12 months. Methods. We enrolled children with CRS born between 1998 and 2003 and compared their immune responses to RUBV with those of their mothers and a group of similarly aged children without CRS. Demographic data and sera were collected. Sera were tested for anti-RUBV immunoglobulin G (IgG), IgG avidity, and IgG response to the 3 viral structural proteins (E1, E2, and C), reflected by immunoblot fluorescent signals. Results. We enrolled 32 children with CRS, 31 mothers, and 62 children without CRS. The immunoblot signal strength to C and the ratio of the C signal to the RUBV-specific IgG concentration were higher (P <.029 for both) and the ratio of the E1 signal to the RUBV-specific IgG concentration lower (P =.001) in children with CRS, compared with their mothers. Compared with children without CRS, children with CRS had more RUBV-specific IgG (P <.001), a stronger C signal (P <.001), and a stronger E2 signal (P <=.001). Two classification rules for children with versus children without CRS gave 100% specificity with >65% sensitivity. Conclusions. This study was the first to establish classification rules for identifying CRS in school-aged children, using laboratory biomarkers. These biomarkers should allow improved burden of disease estimates and monitoring of CRS control programs.
Subject: Developing-countries
Immunoblot Analysis
Country: CARY
Rights: fechado
Identifier DOI: 10.1093/infdis/jiu604
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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