Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections

Since the incidence of symptomatic congenital cytomegalovirus infection is low (~0.05%) and risk factors are not well defined, it is difficult to develop strategies for prevention. The aim of this study was to recognise the utility of specific Immunoglobulin G avidity analysis for distinguishing pri...

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Main Authors: Anita Chakravarti, Bineeta Kashyap, Anupriya Wadhwa
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2007-12-01
Series:Iranian Journal of Allergy, Asthma and Immunology
Subjects:
Online Access:https://ijaai.tums.ac.ir/index.php/ijaai/article/view/185
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author Anita Chakravarti
Bineeta Kashyap
Anupriya Wadhwa
author_facet Anita Chakravarti
Bineeta Kashyap
Anupriya Wadhwa
author_sort Anita Chakravarti
collection DOAJ
description Since the incidence of symptomatic congenital cytomegalovirus infection is low (~0.05%) and risk factors are not well defined, it is difficult to develop strategies for prevention. The aim of this study was to recognise the utility of specific Immunoglobulin G avidity analysis for distinguishing primary infection from past/recurrent infection. Sera from 50 women with cytomegalovirus specific Immunoglobulin M antibodies without proven seroconversion and infants born to these women were tested for presence of Immunoglobulin M antibodies by commercial enzyme immunoassay. For cytomegalovirus specific immunoglobulin G avidity, sera were measured by commercial kit according to manufacturer's recommendations. Among 50 sera form mothers, 26 showed the presence of Immunoglobulin M antibodies out of which 15 had low avidity antibodies. Out of 50 sera from children, 18 showed the presence of Immunoglobulin M antibodies. Out of these 18 sera from children, 12 were symptomatic, which all showed the presence of low avidity antibodies. The results showed that an avidity index
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spelling doaj.art-dc9e75f814a54e00816252bed6b611662022-12-22T01:23:20ZengTehran University of Medical SciencesIranian Journal of Allergy, Asthma and Immunology1735-15021735-52492007-12-0164185Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections Anita Chakravarti0 Bineeta Kashyap1 Anupriya Wadhwa2 Since the incidence of symptomatic congenital cytomegalovirus infection is low (~0.05%) and risk factors are not well defined, it is difficult to develop strategies for prevention. The aim of this study was to recognise the utility of specific Immunoglobulin G avidity analysis for distinguishing primary infection from past/recurrent infection. Sera from 50 women with cytomegalovirus specific Immunoglobulin M antibodies without proven seroconversion and infants born to these women were tested for presence of Immunoglobulin M antibodies by commercial enzyme immunoassay. For cytomegalovirus specific immunoglobulin G avidity, sera were measured by commercial kit according to manufacturer's recommendations. Among 50 sera form mothers, 26 showed the presence of Immunoglobulin M antibodies out of which 15 had low avidity antibodies. Out of 50 sera from children, 18 showed the presence of Immunoglobulin M antibodies. Out of these 18 sera from children, 12 were symptomatic, which all showed the presence of low avidity antibodies. The results showed that an avidity indexhttps://ijaai.tums.ac.ir/index.php/ijaai/article/view/185Avidity indexIgM antibody
spellingShingle Anita Chakravarti
Bineeta Kashyap
Anupriya Wadhwa
Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections
Iranian Journal of Allergy, Asthma and Immunology
Avidity index
IgM antibody
title Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections
title_full Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections
title_fullStr Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections
title_full_unstemmed Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections
title_short Relationship of IgG Avidity Index and IgM Levels for the Differential Diagnosis of Primary from Recurrent Cytomegalovirus Infections
title_sort relationship of igg avidity index and igm levels for the differential diagnosis of primary from recurrent cytomegalovirus infections
topic Avidity index
IgM antibody
url https://ijaai.tums.ac.ir/index.php/ijaai/article/view/185
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