Details:

Alternative Title:
J Infect Dis
Personal Author:
Hyde, Terri B. ; Sato, Helena Keico ; Hao, LiJuan ; Flannery, Brendan ; Zheng, Qi ; ... More +
Hyde, Terri B. ; Sato, Helena Keico ; Hao, LiJuan ; Flannery, Brendan ; Zheng, Qi ; Wannemuehler, Kathleen ; Ciccone, Flávia Helena ; de Sousa Marques, Heloisa ; Weckx, Lily Yin ; Sáfadi, Marco Aurélio ; de Oliveira Moraes, Eliane ; Pinhata, Marisa Mussi ; Neto, Jaime Olbrich ; Bevilacqua, Maria Cecilia ; Junior, Alfredo Tabith ; Monteiro, Tatiana Alves ; Figueiredo, Cristina Adelaide ; Andrus, Jon K. ; Reef, Susan E. ; Toscano, Cristiana M. ; Castillo-Solorzano, Carlos ; Icenogle, Joseph P. Less -
Description:
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:
[+]
Adolescent
Antibodies, Viral
Antibody Affinity
Article
Biomarkers
Child
Congenital Rubella Syndrome
CRS
Female
Humans
Immune Response
Immunoglobulin G
Male
Rubella
Rubella Syndrome, Congenital
Rubella Virus
Schools
Serology
Students
Biomarkers

Source:
J Infect Dis. 212(1):57-66.
Pubmed ID:
25362195
Pubmed Central ID:
PMC4654588
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHS/United States
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:0784763cc7886c10c54b743eebb73451021dacf03e5693ae279ecf3bdab4d876
File Type:

Supporting Files

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