Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease
INTRODUCTION: Exanthem subitum is a classical rash disease of early childhood caused by human herpesvirus 6B (HHV-6B). However, the rash is frequently misdiagnosed as that of either measles or rubella. METHODS: In this study, a nested multiplex polymerase chain reaction (PCR) was used to diagnose HH...
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Sociedade Brasileira de Medicina Tropical (SBMT)
2011-06-01
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doaj-86a920226f73427e859df6d0ebc371cd2020-11-24T22:44:05ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-98492011-06-0144330630810.1590/s0037-86822011005000021S0037-86822011000300008Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic diseaseIvna de Melo Magalhães0Rebeca Vasquez Novo Martins1Renata Oliveira Vianna2Solange Artimos Oliveira3Silvia Maria Baeta Cavalcanti4Universidade Federal FluminenseUniversidade Federal FluminenseUniversidade Federal FluminenseUniversidade Federal FluminenseUniversidade Federal FluminenseINTRODUCTION: Exanthem subitum is a classical rash disease of early childhood caused by human herpesvirus 6B (HHV-6B). However, the rash is frequently misdiagnosed as that of either measles or rubella. METHODS: In this study, a nested multiplex polymerase chain reaction (PCR) was used to diagnose HHV-6B primary infection, differentiate it from infections caused by HHV-6A and compare it to antibody avidity tests. The samples were separated into case group and control group according to the results of the indirect immunofluorescence assay (IFA) technique. RESULTS: From the saliva samples analyzed, HHV-6A DNA was detected in 3.2% of the case group and in 2.6% of the control group. Regarding HHV-6B, PCR detected viral DNA in 4.8% of the case group and in 1.3% of the control group. Among the serum samples studied, a frequency of 1.7% was determined for HHV-6A in the case group and 1.2% in the control group. PCR did not detect HHV-6B DNA in serum samples. The sensitivity and specificity of the PCR technique ranged from 0% to 4.8% and 97.5% to 100%, respectively, compared to IFA. CONCLUSIONS: The PCR technique was not suitable for diagnosing primary infection by HHV-6B in children with exanthematic disease and should not substitute the IFA.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822011000300008&lng=en&tlng=enHerpesvírus humano tipo 6Exantema súbitoMultiplex PCRImunofluorescência indiretaInfecção primária |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ivna de Melo Magalhães Rebeca Vasquez Novo Martins Renata Oliveira Vianna Solange Artimos Oliveira Silvia Maria Baeta Cavalcanti |
spellingShingle |
Ivna de Melo Magalhães Rebeca Vasquez Novo Martins Renata Oliveira Vianna Solange Artimos Oliveira Silvia Maria Baeta Cavalcanti Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease Revista da Sociedade Brasileira de Medicina Tropical Herpesvírus humano tipo 6 Exantema súbito Multiplex PCR Imunofluorescência indireta Infecção primária |
author_facet |
Ivna de Melo Magalhães Rebeca Vasquez Novo Martins Renata Oliveira Vianna Solange Artimos Oliveira Silvia Maria Baeta Cavalcanti |
author_sort |
Ivna de Melo Magalhães |
title |
Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease |
title_short |
Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease |
title_full |
Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease |
title_fullStr |
Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease |
title_full_unstemmed |
Diagnosis of human herpesvirus 6B primary infection by polymerase chain reaction in young children with exanthematic disease |
title_sort |
diagnosis of human herpesvirus 6b primary infection by polymerase chain reaction in young children with exanthematic disease |
publisher |
Sociedade Brasileira de Medicina Tropical (SBMT) |
series |
Revista da Sociedade Brasileira de Medicina Tropical |
issn |
1678-9849 |
publishDate |
2011-06-01 |
description |
INTRODUCTION: Exanthem subitum is a classical rash disease of early childhood caused by human herpesvirus 6B (HHV-6B). However, the rash is frequently misdiagnosed as that of either measles or rubella. METHODS: In this study, a nested multiplex polymerase chain reaction (PCR) was used to diagnose HHV-6B primary infection, differentiate it from infections caused by HHV-6A and compare it to antibody avidity tests. The samples were separated into case group and control group according to the results of the indirect immunofluorescence assay (IFA) technique. RESULTS: From the saliva samples analyzed, HHV-6A DNA was detected in 3.2% of the case group and in 2.6% of the control group. Regarding HHV-6B, PCR detected viral DNA in 4.8% of the case group and in 1.3% of the control group. Among the serum samples studied, a frequency of 1.7% was determined for HHV-6A in the case group and 1.2% in the control group. PCR did not detect HHV-6B DNA in serum samples. The sensitivity and specificity of the PCR technique ranged from 0% to 4.8% and 97.5% to 100%, respectively, compared to IFA. CONCLUSIONS: The PCR technique was not suitable for diagnosing primary infection by HHV-6B in children with exanthematic disease and should not substitute the IFA. |
topic |
Herpesvírus humano tipo 6 Exantema súbito Multiplex PCR Imunofluorescência indireta Infecção primária |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822011000300008&lng=en&tlng=en |
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