Skip to main content
Top
Published in: Infection 3/2015

01-06-2015 | Original Paper

Occult hepatitis B virus infection in children born to HBsAg-positive mothers after neonatal passive-active immunoprophylaxis

Authors: Hanan Foaud, Sahar Maklad, Faten Mahmoud, Hanaa El-Karaksy

Published in: Infection | Issue 3/2015

Login to get access

Abstract

Background

Occult hepatitis B virus infection (OBI) is a well-recognized clinical entity characterized by the detection of HBV DNA in serum and/or liver in the absence of detectable HBsAg. Diagnosis of OBI requires a sensitive HBV DNA assay.

Aim

We aimed at determining the frequency of OBI in infants, born to HBsAg-positive mothers, who received immunoprophylaxis at birth.

Methods

Sixty-four infants and children, born to HBsAg-positive mothers, who received hepatitis B immunoglobulin and HBV vaccine within 48 h after birth, were tested for HBV serological profile and HBV DNA by real-time PCR at least 1 month after last dose of HBV vaccine and not before 6 months of age.

Results

The median age of the studied infants and children was 8 months, ranging from 6 to 132 months; 54.7 % were females. HBV DNA was detected in 2 infants. One case had OBI; she was negative for HBsAg, anti-HBc total, HBeAg and was positive for anti-HBs (titer 267 mIU/mL) with low level of viremia (HBV DNA 1.13 x 103 IU/mL). Another infant showed immunoprophylaxis failure with positive HBsAg, anti-HBc total, HBeAg, negative anti-HBe and anti-HBs; HBV viral load was 1.7 × 108 IU/mL. Both mothers were HBsAg and HBeAg-positive.

Conclusion

OBI may occur in infants born to HBsAg-positive mothers despite the receipt of immunoprophylaxis. OBI was detected in a low frequency in the present study. Anti-HBs positivity does not exclude OBI.
Literature
1.
go back to reference Wiseman E, Fraser MA, Holden S, Glass A, Kidson BL, Heron LG, Maley MW, Ayres A, Locarnini SA, Levy MT. Perinatal transmission of hepatitis B virus: an Australian experience. Med J Aust. 2009;190:489–92.PubMed Wiseman E, Fraser MA, Holden S, Glass A, Kidson BL, Heron LG, Maley MW, Ayres A, Locarnini SA, Levy MT. Perinatal transmission of hepatitis B virus: an Australian experience. Med J Aust. 2009;190:489–92.PubMed
2.
go back to reference Margolis HS, Coleman PJ, Brown RE, Mast EE, Sheingold SH, Arevalo JA. Prevention of hepatitis B virus transmission by immunization: an economic analysis of current recommendations. JAMA. 1995;274:1201–8.CrossRefPubMed Margolis HS, Coleman PJ, Brown RE, Mast EE, Sheingold SH, Arevalo JA. Prevention of hepatitis B virus transmission by immunization: an economic analysis of current recommendations. JAMA. 1995;274:1201–8.CrossRefPubMed
4.
go back to reference Piratvisuth T. Optimal management of HBV infection during pregnancy. Liver Int. 2013;1:188–94.CrossRef Piratvisuth T. Optimal management of HBV infection during pregnancy. Liver Int. 2013;1:188–94.CrossRef
5.
go back to reference Mast EE, Margolis HS, Fiore AE, Brink EW, Goldstein ST, Wang SA, Moyer LA, Bell BP, Alter MJ. Advisory Committee on Immunization Practices (ACIP). A comprehensive immunization strategy to eliminate transmission of hepatitis B virus infection in the United States: recommendations of the Advisory Committee on Immunization Practices (ACIP) part 1: immunization of infants, children, and adolescents. MMWR Recomm Rep. 2005;54(RR-16):1–31. Mast EE, Margolis HS, Fiore AE, Brink EW, Goldstein ST, Wang SA, ​Moyer LA, Bell BP, Alter MJ. Advisory Committee on Immunization Practices (ACIP). A comprehensive immunization strategy to eliminate transmission of hepatitis B virus infection in the United States: recommendations of the Advisory Committee on Immunization Practices (ACIP) part 1: immunization of infants, children, and adolescents. MMWR Recomm Rep. 2005;54(RR-16):1–31.
6.
go back to reference Brechot C, Thiers V, Kremsdorf D, Nalpas B, Pol S, Paterlini-Brechot P. Persistent hepatitis B virus infection in subjects without hepatitis B surface antigen: clinically significant or purely “occult”? Hepatology. 2001;34:194–203.CrossRefPubMed Brechot C, Thiers V, Kremsdorf D, Nalpas B, Pol S, Paterlini-Brechot P. Persistent hepatitis B virus infection in subjects without hepatitis B surface antigen: clinically significant or purely “occult”? Hepatology. 2001;34:194–203.CrossRefPubMed
7.
go back to reference Hollinger FB, Habibollahi P, Daneshmand A, Alavian SM. Occult hepatitis B infection in chronic hemodialysis patients: current concepts and strategy. Hepat Mon. 2010;10:199–204. Hollinger FB, Habibollahi P, Daneshmand A, Alavian SM. Occult hepatitis B infection in chronic hemodialysis patients: current concepts and strategy. Hepat Mon. 2010;10:199–204.
8.
go back to reference Hu KQ. Occult hepatitis B virus infection and its clinical implications. J Viral Hepat. 2002;9:243–57.CrossRefPubMed Hu KQ. Occult hepatitis B virus infection and its clinical implications. J Viral Hepat. 2002;9:243–57.CrossRefPubMed
9.
go back to reference Raimondo G, Pollicino T, Cacciola I, Squadrito G. Occult hepatitis B virus infection. J Hepatol. 2007;46:160–70.CrossRefPubMed Raimondo G, Pollicino T, Cacciola I, Squadrito G. Occult hepatitis B virus infection. J Hepatol. 2007;46:160–70.CrossRefPubMed
11.
go back to reference El-Sherif A, Abou-Shady M, Abou-Zeid H, Elwassief A, Elbahrawy A, Ueda Y, Chiba T, Hosney AM. Antibody to hepatitis B core antigen as a screening test for occult hepatitis B virus infection in Egyptian chronic hepatitis C patients. J Gastroenterol. 2009;44:359–64.CrossRefPubMed El-Sherif A, Abou-Shady M, Abou-Zeid H, Elwassief A, Elbahrawy A, Ueda Y, Chiba T, Hosney AM. Antibody to hepatitis B core antigen as a screening test for occult hepatitis B virus infection in Egyptian chronic hepatitis C patients. J Gastroenterol. 2009;44:359–64.CrossRefPubMed
12.
go back to reference Datta S, Banerjee A, Chandra PK, Chowdhury A, Chakravarty R. Genotype, phylogenetic analysis, and transmission pattern of occult hepatitis B virus (HBV) infection in families of asymptomatic HBsAg carriers. J Med Virol. 2006;78:53–9.CrossRefPubMed Datta S, Banerjee A, Chandra PK, Chowdhury A, Chakravarty R. Genotype, phylogenetic analysis, and transmission pattern of occult hepatitis B virus (HBV) infection in families of asymptomatic HBsAg carriers. J Med Virol. 2006;78:53–9.CrossRefPubMed
13.
go back to reference Walz A, Wirth S, Hucke J, Gerner P. Vertical transmission of hepatitis B virus from mothers negative for HBV surface antigen and positive for antibody to HBV core antigen. J Infect Dis. 2009;200:1227–31.CrossRefPubMed Walz A, Wirth S, Hucke J, Gerner P. Vertical transmission of hepatitis B virus from mothers negative for HBV surface antigen and positive for antibody to HBV core antigen. J Infect Dis. 2009;200:1227–31.CrossRefPubMed
14.
go back to reference Reesink HW, Engelfriet CP, Henn G, Mayr WR, Delage G, Bernier F, Krusius T, Assal A, Gallian P, Corbi C, Morel P, David B, De Micco P, Murokawa H, Yugi H, Hino S, Tadokoro K, Flesland O, Brojer E, Letowska M, Olim G, Nascimento F, Gonçalves H, Castro L, Morais M, Stezinar SL, Alvarez M, Sauleda S, González R, Niederhauser C, Stolz M, Allain JP, Owusu-Ofori S, Eglin R, Stramer S, Busch M, Strong DM, Epstein J, Biswas R. Occult hepatitis B infection in blood donors. Vox Sang. 2008;94:153–66.CrossRefPubMed Reesink HW, Engelfriet CP, Henn G, Mayr WR, Delage G, Bernier F, Krusius T, Assal A, Gallian P, Corbi C, Morel P, David B, De Micco P, Murokawa H, Yugi H, Hino S, Tadokoro K, Flesland O, Brojer E, Letowska M, Olim G, Nascimento F, Gonçalves H, Castro L, Morais M, Stezinar SL, Alvarez M, Sauleda S, González R, Niederhauser C, Stolz M, Allain JP, Owusu-Ofori S, Eglin R, Stramer S, Busch M, Strong DM, Epstein J, Biswas R. Occult hepatitis B infection in blood donors. Vox Sang. 2008;94:153–66.CrossRefPubMed
15.
go back to reference Carman WF. The clinical significance of surface antigen variants of hepatitis B virus. J Viral Hepat. 1997;4:11–20.CrossRefPubMed Carman WF. The clinical significance of surface antigen variants of hepatitis B virus. J Viral Hepat. 1997;4:11–20.CrossRefPubMed
16.
go back to reference Hamkar R, Aghakhani A, Soufian S, Banifazl M, Ghavami N, Nadri M, Sofian M, Ahmadi F, Razeghi E, Eslamifar A, Ramezani A. Surface gene mutations of hepatitis B virus among high-risk patients with occult hepatitis B virus infection. Diagn Microbiol Infect Dis. 2010;66:285–91.CrossRefPubMed Hamkar R, Aghakhani A, Soufian S, Banifazl M, Ghavami N, Nadri M, Sofian M, Ahmadi F, Razeghi E, Eslamifar A, Ramezani A. Surface gene mutations of hepatitis B virus among high-risk patients with occult hepatitis B virus infection. Diagn Microbiol Infect Dis. 2010;66:285–91.CrossRefPubMed
17.
go back to reference European Association for the study of the Liver. EASL clinical practice guidelines: Management of chronic hepatitis B virus infection. J Hepatol. 2012;57:167–85. doi:10.1016/j.jhep.2012.02.010. European Association for the study of the Liver. EASL clinical practice guidelines: Management of chronic hepatitis B virus infection. J Hepatol. 2012;57:167–85. doi:10.​1016/​j.​jhep.​2012.​02.​010.
18.
go back to reference Mast EE, Weinbaum CM, Fiore AE, Alter MJ, Bell BP, Finelli L, Rodewald LE, Douglas JM Jr, Janssen RS, Ward JW. Advisory Committee on Immunization Practices (ACIP) Centers for Disease Control and Prevention (CDC). A comprehensive immunization strategy to eliminate transmission of hepatitis B virus infection in the United States: recommendations of the Advisory Committee on Immunization Practices (ACIP) Part II: immunization of adults. MMWR Recomm Rep. 2006;55(RR-16):1–33. quiz CE1-4. Mast EE, Weinbaum CM, Fiore AE, Alter MJ, Bell BP, Finelli L, Rodewald LE, Douglas JM Jr, Janssen RS, Ward JW. Advisory Committee on Immunization Practices (ACIP) Centers for Disease Control and Prevention (CDC). A comprehensive immunization strategy to eliminate transmission of hepatitis B virus infection in the United States: recommendations of the Advisory Committee on Immunization Practices (ACIP) Part II: immunization of adults. MMWR Recomm Rep. 2006;55(RR-16):1–33. quiz CE1-4.
20.
go back to reference Buchanan C, Tran TT. Management of chronic hepatitis B in pregnancy. Clin Liver Dis. 2010;14:495–504.CrossRefPubMed Buchanan C, Tran TT. Management of chronic hepatitis B in pregnancy. Clin Liver Dis. 2010;14:495–504.CrossRefPubMed
21.
go back to reference El-Karaksy HM, Mohsen LM, Saleh DA, Hamdy MS, Yassin NA, Farouk M, Salit ME, El-Shabrawi MH. Applicability and efficacy of a model for prevention of perinatal transmission of hepatitis B virus infection: single center study in Egypt. WJG. 2014;20(45):17075–83. doi:10.3748/wjg.v20.i45.17075. El-Karaksy HM, Mohsen LM, Saleh DA, Hamdy MS, Yassin NA, Farouk M, Salit ME, El-Shabrawi MH. Applicability and efficacy of a model for prevention of perinatal transmission of hepatitis B virus infection: single center study in Egypt. WJG. 2014;20(45):17075–83. doi:10.​3748/​wjg.​v20.​i45.​17075.  
22.
go back to reference Sun HY, Cheng CY, Lee NY, Yang CJ, Liang SH, Tsai MS, Ko WC, Liu WC, Wu PY, Wu CH, Lin HH, Hung CC. Seroprevalence of hepatitis B virus among adults at high risk for HIV transmission two decades after implementation of nationwide hepatitis B virus vaccination program in Taiwan. PLoS One. 2014;9:e90194.CrossRefPubMedCentralPubMed Sun HY, Cheng CY, Lee NY, Yang CJ, Liang SH, Tsai MS, Ko WC, Liu WC, Wu PY, Wu CH, Lin HH, Hung CC. Seroprevalence of hepatitis B virus among adults at high risk for HIV transmission two decades after implementation of nationwide hepatitis B virus vaccination program in Taiwan. PLoS One. 2014;9:e90194.CrossRefPubMedCentralPubMed
23.
go back to reference Mu SC, Lin YM, Jow GM, Chen BF. Occult hepatitis B virus infection in hepatitis B vaccinated children in Taiwan. J Hepatol. 2009;50:264–72.CrossRefPubMed Mu SC, Lin YM, Jow GM, Chen BF. Occult hepatitis B virus infection in hepatitis B vaccinated children in Taiwan. J Hepatol. 2009;50:264–72.CrossRefPubMed
24.
go back to reference Lu FM, Zhuang H. Management of hepatitis B in China. Chin Med J (Engl). 2009;122:3–4. Lu FM, Zhuang H. Management of hepatitis B in China. Chin Med J (Engl). 2009;122:3–4.
25.
go back to reference Su H, Zhang Y, Xu D, Wang B, Zhang L, Li D, Xiao D, Li F, Zhang J, Yan Y. Occult hepatitis B virus infection in anti-HBs-positive infants born to HBsAg-positive mothers in China. PLoS One. 2013;8:e70768.CrossRefPubMedCentralPubMed Su H, Zhang Y, Xu D, Wang B, Zhang L, Li D, Xiao D, Li F, Zhang J, Yan Y. Occult hepatitis B virus infection in anti-HBs-positive infants born to HBsAg-positive mothers in China. PLoS One. 2013;8:e70768.CrossRefPubMedCentralPubMed
26.
go back to reference Meffre C, Le Strat Y, Delarocque-Astagneau E, Dubois F, Antona D, Lemasson JM, Warszawski J, Steinmetz J, Coste D, Meyer JF, Leiser S, Giordanella JP, Gueguen R, Desenclos JC. Prevalence of hepatitis B and hepatitis C virus infections in France in 2004: social factors are important predictors after adjusting for known risk factors. J Med Virol. 2010;82:546–55.CrossRefPubMed Meffre C, Le Strat Y, Delarocque-Astagneau E, Dubois F, Antona D, Lemasson JM, Warszawski J, Steinmetz J, Coste D, Meyer JF, Leiser S, Giordanella JP, Gueguen R, Desenclos JC. Prevalence of hepatitis B and hepatitis C virus infections in France in 2004: social factors are important predictors after adjusting for known risk factors. J Med Virol. 2010;82:546–55.CrossRefPubMed
27.
go back to reference Chakvetadze C, Roussin C, Roux J, Mallet V, Petinelli ME, Pol S. Efficacy of hepatitis B sero-vaccination in newborns of African HBsAg positive mothers. Vaccine. 2011;29:2846–9.CrossRefPubMed Chakvetadze C, Roussin C, Roux J, Mallet V, Petinelli ME, Pol S. Efficacy of hepatitis B sero-vaccination in newborns of African HBsAg positive mothers. Vaccine. 2011;29:2846–9.CrossRefPubMed
28.
go back to reference Moezzi M, Imani R, Khosravi N, Pourheidar B, Ganji F, Karimi A. Hepatitis B seroprevalence and risk factors in adult population of Chaharmahal and Bakhtiari province in 2013. Hepat Mon. 2014;14:e17398.PubMedCentralPubMed Moezzi M, Imani R, Khosravi N, Pourheidar B, Ganji F, Karimi A. Hepatitis B seroprevalence and risk factors in adult population of Chaharmahal and Bakhtiari province in 2013. Hepat Mon. 2014;14:e17398.PubMedCentralPubMed
29.
go back to reference Shahmoradi S, Yahyapour Y, Mahmoodi M, Alavian SM, Fazeli Z, Jazayeri SM. High prevalence of occult hepatitis B virus infection in children born to HBsAg-positive mothers despite prophylaxis with hepatitis B vaccination and HBIG. J Hepatol. 2012;57:515–21.CrossRefPubMed Shahmoradi S, Yahyapour Y, Mahmoodi M, Alavian SM, Fazeli Z, Jazayeri SM. High prevalence of occult hepatitis B virus infection in children born to HBsAg-positive mothers despite prophylaxis with hepatitis B vaccination and HBIG. J Hepatol. 2012;57:515–21.CrossRefPubMed
30.
go back to reference Lehman EM, Wilson ML. Epidemiology of hepatitis viruses among hepatocellular carcinoma cases and healthy people in Egypt: a systematic review and meta-analysis. Int J Cancer. 2009;124:690–7.CrossRefPubMed Lehman EM, Wilson ML. Epidemiology of hepatitis viruses among hepatocellular carcinoma cases and healthy people in Egypt: a systematic review and meta-analysis. Int J Cancer. 2009;124:690–7.CrossRefPubMed
31.
go back to reference El-Zayadi A. Hepatitis B virus infection: the Egyptian situation. Arab J Gastroenterol. 2007;8:94–8. El-Zayadi A. Hepatitis B virus infection: the Egyptian situation. Arab J Gastroenterol. 2007;8:94–8.
32.
go back to reference Sayan M, Buğdacı MS. HBV vaccine escape mutations in a chronic hepatitis B patient treated with nucleos(t)ide analogues. Mikrobiyol Bul. 2013;47:544–9.CrossRefPubMed Sayan M, Buğdacı MS. HBV vaccine escape mutations in a chronic hepatitis B patient treated with nucleos(t)ide analogues. Mikrobiyol Bul. 2013;47:544–9.CrossRefPubMed
33.
go back to reference Mantovani N, Cicero M, Santana LC, Silveira C, do Carmo EP, Abrão PR, Diaz RS, Caseiro MM, Komninakis SV. Detection of lamivudine-resistant variants and mutations related to reduced antigenicity of HBsAg in individuals from the cities of Santos and São Paulo, Brazil. Virol J. 2013;10:320. doi:10.1186/1743-422X-10-320.CrossRefPubMedCentralPubMed Mantovani N, Cicero M, Santana LC, Silveira C, do Carmo EP, Abrão PR, Diaz RS, Caseiro MM, Komninakis SV. Detection of lamivudine-resistant variants and mutations related to reduced antigenicity of HBsAg in individuals from the cities of Santos and São Paulo, Brazil. Virol J. 2013;10:320. doi:10.​1186/​1743-422X-10-320.CrossRefPubMedCentralPubMed
34.
go back to reference Hollinger FB, Hepatitis B. Virus genetic diversity and its impact on diagnostic assays. J Viral Hepat. 2007;14:11–5.CrossRefPubMed Hollinger FB, Hepatitis B. Virus genetic diversity and its impact on diagnostic assays. J Viral Hepat. 2007;14:11–5.CrossRefPubMed
35.
go back to reference El Chaar M, Candotti D, Crowther RA, Allain JP. Impact of hepatitis B virus surface protein mutations on the diagnosis of occult hepatitis B virus infection. Hepatology. 2010;52:1600–10.CrossRefPubMed El Chaar M, Candotti D, Crowther RA, Allain JP. Impact of hepatitis B virus surface protein mutations on the diagnosis of occult hepatitis B virus infection. Hepatology. 2010;52:1600–10.CrossRefPubMed
36.
go back to reference Chen BF. Clinical significance of the hepatitis B virus pre-S deletion. FJJM. 2010;8:85–95. Chen BF. Clinical significance of the hepatitis B virus pre-S deletion. FJJM. 2010;8:85–95.
37.
go back to reference Ayres A, Yuen L, Jackson KM, Manoharan S, Glass A, Maley M, Yoo W, Hong SP, Kim SO, Luciani F, Bowden DS, Bayliss J, Levy MT, Locarnini SA. Short duration of lamivudine for the prevention of hepatitis B virus transmission in pregnancy: lack of potency and selection of resistance mutations. J Viral Hepat. 2014;21:809–17.CrossRefPubMed Ayres A, Yuen L, Jackson KM, Manoharan S, Glass A, Maley M, Yoo W, Hong SP, Kim SO, Luciani F, Bowden DS, Bayliss J, Levy MT, Locarnini SA. Short duration of lamivudine for the prevention of hepatitis B virus transmission in pregnancy: lack of potency and selection of resistance mutations. J Viral Hepat. 2014;21:809–17.CrossRefPubMed
38.
go back to reference Yin YZ, Zhou J, Zhang PZ, Hou HY. Identification of risk factors related to the failure of immunization to interrupt hepatitis B virus perinatal transmission. Zhonghua Gan Zang Bing Za Zhi. 2013;21:105–10.PubMed Yin YZ, Zhou J, Zhang PZ, Hou HY. Identification of risk factors related to the failure of immunization to interrupt hepatitis B virus perinatal transmission. Zhonghua Gan Zang Bing Za Zhi. 2013;21:105–10.PubMed
39.
go back to reference Kang W, Ding Z, Shen L, Zhao Z, Huang G, Zhang J, Xiong Q, Zhang S, Zhang S, Wang F. Risk factors associated with immunoprophylaxis failure against mother to child transmission of hepatitis B virus and hepatitis B vaccination status in Yunnan province, China. Vaccine. 2014;32:3362–6.CrossRefPubMed Kang W, Ding Z, Shen L, Zhao Z, Huang G, Zhang J, Xiong Q, Zhang S, Zhang S, Wang F. Risk factors associated with immunoprophylaxis failure against mother to child transmission of hepatitis B virus and hepatitis B vaccination status in Yunnan province, China. Vaccine. 2014;32:3362–6.CrossRefPubMed
40.
go back to reference Zhang L, Gui X, Wang B, Ji H, Yisilafu R, Li F, Zhou Y, Zhang L, Zhang H, Liu X. A study of immunoprophylaxis failure and risk factors of hepatitis B virus mother-to-infant transmission. Eur J Pediatr. 2014;173:1161–8.CrossRefPubMed Zhang L, Gui X, Wang B, Ji H, Yisilafu R, Li F, Zhou Y, Zhang L, Zhang H, Liu X. A study of immunoprophylaxis failure and risk factors of hepatitis B virus mother-to-infant transmission. Eur J Pediatr. 2014;173:1161–8.CrossRefPubMed
41.
go back to reference Li T, Qiu JM, Miao MH, Su XJ, Duan T. Meta-analysis on the effect of hepatitis B immunoglobulin on blocking intrauterine infection of HBV during the third-trimester. Xian Dai Fuke Jinzhan. 2009;18:197–200. Li T, Qiu JM, Miao MH, Su XJ, Duan T. Meta-analysis on the effect of hepatitis B immunoglobulin on blocking intrauterine infection of HBV during the third-trimester. Xian Dai Fuke Jinzhan. 2009;18:197–200.
42.
go back to reference Shi Z, Li X, Ma L, Yang Y. Hepatitis B immunoglobulin injection in pregnancy to interrupt hepatitis B virus mother-to child transmission-a meta-analysis. Int J Infect Dis. 2010;14:e622–34.CrossRefPubMed Shi Z, Li X, Ma L, Yang Y. Hepatitis B immunoglobulin injection in pregnancy to interrupt hepatitis B virus mother-to child transmission-a meta-analysis. Int J Infect Dis. 2010;14:e622–34.CrossRefPubMed
43.
go back to reference Zhou YH, Hu YL. Effective strategy of prevent HBV mother to-child transmission. Zhonghua Erke Zazhi. 2010;13:273–6. Zhou YH, Hu YL. Effective strategy of prevent HBV mother to-child transmission. Zhonghua Erke Zazhi. 2010;13:273–6.
44.
go back to reference Gan L, Liu DY, Wei M. Mutations of hepatitis B virus S gene by hepatitis B immunoglobulin administration in late pregnancy. Afr J Microbio Res. 2012;6:5975–9. Gan L, Liu DY, Wei M. Mutations of hepatitis B virus S gene by hepatitis B immunoglobulin administration in late pregnancy. Afr J Microbio Res. 2012;6:5975–9.
45.
go back to reference El-Zayadi AR, Ibrahim EH, Badran HM, Saeid A, Moneib NA, Shemis MA, Abdel-Sattar RM, Ahmady AM, El-Nakeeb A. Anti-HBc screening in Egyptian blood donors reduces the risk of hepatitis B virus transmission. Transfus Med. 2008;18:55–61.CrossRefPubMed El-Zayadi AR, Ibrahim EH, Badran HM, Saeid A, Moneib NA, Shemis MA, Abdel-Sattar RM, Ahmady AM, El-Nakeeb A. Anti-HBc screening in Egyptian blood donors reduces the risk of hepatitis B virus transmission. Transfus Med. 2008;18:55–61.CrossRefPubMed
46.
go back to reference Ismail H, Soliman M, Ismail N. Occult hepatitis B virus infection in Egyptian hemodialysis patients with or without hepatitis C virus infection. Pathol Lab Med Int. 2010;2:113–20.CrossRef Ismail H, Soliman M, Ismail N. Occult hepatitis B virus infection in Egyptian hemodialysis patients with or without hepatitis C virus infection. Pathol Lab Med Int. 2010;2:113–20.CrossRef
48.
go back to reference Ahmed A, Abdel Satar I, El Ahl H, Shousha W, Doss W. Occult hepatitis B in Egyptian thalassemic children. J Infect Dev Ctries. 2012;6:340–6.PubMed Ahmed A, Abdel Satar I, El Ahl H, Shousha W, Doss W. Occult hepatitis B in Egyptian thalassemic children. J Infect Dev Ctries. 2012;6:340–6.PubMed
49.
go back to reference Centers for Disease Control and Prevention (CDC). Postvaccination serologic testing results for infants aged ≤24 months exposed to hepatitis B virus at birth: United States, 2008–2011. MMWR Morb Mortal Wkly Rep. 2012;61:768–71. Centers for Disease Control and Prevention (CDC). Postvaccination serologic testing results for infants aged ≤24 months exposed to hepatitis B virus at birth: United States, 2008–2011.  MMWR Morb Mortal Wkly Rep. 2012;61:768–71.
Metadata
Title
Occult hepatitis B virus infection in children born to HBsAg-positive mothers after neonatal passive-active immunoprophylaxis
Authors
Hanan Foaud
Sahar Maklad
Faten Mahmoud
Hanaa El-Karaksy
Publication date
01-06-2015
Publisher
Springer Berlin Heidelberg
Published in
Infection / Issue 3/2015
Print ISSN: 0300-8126
Electronic ISSN: 1439-0973
DOI
https://doi.org/10.1007/s15010-015-0733-6

Other articles of this Issue 3/2015

Infection 3/2015 Go to the issue