The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa

Background: The prevalence of hepatitis B virus (HBV) amongst South African infants and children has been reported in the pre-HIV era. Despite the reported high prevalence of HIV in the general population of South Africa, the rate of HIV/HBV co-infection amongst infants and children remains poorly r...

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Main Authors: Nokukhanya Mdlalose, Raveen Parboosing, Pravi Moodley
Format: Article
Language:English
Published: AOSIS 2016-03-01
Series:African Journal of Laboratory Medicine
Subjects:
Online Access:https://ajlmonline.org/index.php/ajlm/article/view/283
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author Nokukhanya Mdlalose
Raveen Parboosing
Pravi Moodley
author_facet Nokukhanya Mdlalose
Raveen Parboosing
Pravi Moodley
author_sort Nokukhanya Mdlalose
collection DOAJ
description Background: The prevalence of hepatitis B virus (HBV) amongst South African infants and children has been reported in the pre-HIV era. Despite the reported high prevalence of HIV in the general population of South Africa, the rate of HIV/HBV co-infection amongst infants and children remains poorly reported. Objectives: We describe the prevalence of HBV infection amongst HIV-positive and HIV-negative infants by molecular methods of diagnosis using dried blood spot samples. Methods: This retrospective cross-sectional study was conducted between July 2011 and December 2011 in an academic referral laboratory offering viral diagnostic services to the entire KwaZulu-Natal province of South Africa. A total of 322 study samples were collected from discarded residual dried blood spot samples following routine infant diagnosis of HIV. Equal proportions of HIV-positive and HIV-negative infant specimens were studied. Statistical differences in the prevalence of HBV between the HIV-positive and HIV-negative samples were calculated using the Pearson chi-square test, and a p-value < 0.05 was considered statistically significant. Further testing for HBV DNA using a nested polymerase chain reaction method was performed. Results: The overall prevalence of HBV was 10%. In the HIV-positive group, 21 of 161 infants tested positive for HBV compared with 12 of 161 HIV-negative infants who tested positive for HBV. The proportion of infants infected with HBV was marginally higher amongst HIV positiveinfants (13.0%; 95% CI 6.8–19.9) compared with HIV-negative infants (7.5%; 95% C I2.5–13.7; P = 0.098), though not statistically significant. Conclusion: The finding of a 10% HBV prevalence in this infant cohort is clinically significant. The non-statistically significant difference in HBV prevalence between the HIV-positive and HIV-negative infants suggests that high prevalence of HBV infection in children may be a problem independent of HIV.
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spelling doaj.art-67cedc68b727498bb7f1ee103f4f23792022-12-22T02:30:45ZengAOSISAfrican Journal of Laboratory Medicine2225-20022225-20102016-03-0151e1e510.4102/ajlm.v5i1.283106The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South AfricaNokukhanya Mdlalose0Raveen Parboosing1Pravi Moodley2Department of Virology, National Health Laboratory Service, University of KwaZulu-NatalDepartment of Virology, National Health Laboratory Service, University of KwaZulu-NatalDepartment of Virology, National Health Laboratory Service, University of KwaZulu-NatalBackground: The prevalence of hepatitis B virus (HBV) amongst South African infants and children has been reported in the pre-HIV era. Despite the reported high prevalence of HIV in the general population of South Africa, the rate of HIV/HBV co-infection amongst infants and children remains poorly reported. Objectives: We describe the prevalence of HBV infection amongst HIV-positive and HIV-negative infants by molecular methods of diagnosis using dried blood spot samples. Methods: This retrospective cross-sectional study was conducted between July 2011 and December 2011 in an academic referral laboratory offering viral diagnostic services to the entire KwaZulu-Natal province of South Africa. A total of 322 study samples were collected from discarded residual dried blood spot samples following routine infant diagnosis of HIV. Equal proportions of HIV-positive and HIV-negative infant specimens were studied. Statistical differences in the prevalence of HBV between the HIV-positive and HIV-negative samples were calculated using the Pearson chi-square test, and a p-value < 0.05 was considered statistically significant. Further testing for HBV DNA using a nested polymerase chain reaction method was performed. Results: The overall prevalence of HBV was 10%. In the HIV-positive group, 21 of 161 infants tested positive for HBV compared with 12 of 161 HIV-negative infants who tested positive for HBV. The proportion of infants infected with HBV was marginally higher amongst HIV positiveinfants (13.0%; 95% CI 6.8–19.9) compared with HIV-negative infants (7.5%; 95% C I2.5–13.7; P = 0.098), though not statistically significant. Conclusion: The finding of a 10% HBV prevalence in this infant cohort is clinically significant. The non-statistically significant difference in HBV prevalence between the HIV-positive and HIV-negative infants suggests that high prevalence of HBV infection in children may be a problem independent of HIV.https://ajlmonline.org/index.php/ajlm/article/view/283Hepatitis B virusInfantsSouth Africa
spellingShingle Nokukhanya Mdlalose
Raveen Parboosing
Pravi Moodley
The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa
African Journal of Laboratory Medicine
Hepatitis B virus
Infants
South Africa
title The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa
title_full The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa
title_fullStr The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa
title_full_unstemmed The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa
title_short The prevalence of hepatitis B virus infection in HIV-positive and HIV-negative infants: KwaZulu-Natal, South Africa
title_sort prevalence of hepatitis b virus infection in hiv positive and hiv negative infants kwazulu natal south africa
topic Hepatitis B virus
Infants
South Africa
url https://ajlmonline.org/index.php/ajlm/article/view/283
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