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Tang J, Luo YQ, Zhou YH. Elimination of hepatitis B virus infection in children: experience and challenge in China. Chin Med J (Engl) 2021; 134:2818-2824. [PMID: 34636773 PMCID: PMC8667976 DOI: 10.1097/cm9.0000000000001791] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 11/25/2022] Open
Abstract
ABSTRACT Chronic hepatitis B virus (HBV) infection is a serious health issue because of its severe sequelae. Prevention of mother-to-child transmission (MTCT) of HBV is critical to eliminate chronic HBV infection. Here, we reviewed the progress toward the elimination of HBV infection in children in China in the recent decade. A universal hepatitis B vaccination program started from 2002 has been intensified, with the coverage of timely birth dose >95% of all newborn infants from 2012. Since 2011, China has taken a nationwide program to administer hepatitis B immunoglobulin (HBIG) with free of charge in all neonates of HBV-infected mothers, leading to a significant increment of timely use of HBIG. The prevalence of hepatitis B surface antigen (HBsAg) was declined from around 10% among children in 1980s to <0.5% among children born after 2011. Administration of oral antiviral agents in HBV-infected pregnant women with HBV DNA >2 × 105 U/mL during the third trimester is increasing, which will further reduce MTCT of HBV. However, there are some challenges in the elimination of HBV infection in children, which need to overcome by the concerted efforts. Nevertheless, it is anticipated that China will achieve the goal set by the World Health Organization that the prevalence of HBsAg in children aged <5 years is ≤0.1% by 2030.
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Affiliation(s)
- Jie Tang
- Department of Obstetrics and Gynecology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu 213017, China
- Department of Obstetrics and Gynecology, The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu 213017, China
| | - Yu-Qian Luo
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu 210008, China
| | - Yi-Hua Zhou
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu 210008, China
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu 210008, China
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Xu B, Xu C, Feng J, Chen J, Rui Y, Qiu Z, Zhu J, Tang J, Lou H, Chen T, Ge H, Ge X, Wang Z, Huang H, Pan M, Dai Y, Hu Y, Zhou YH. Reduced mother-to-child transmission of hepatitis B after implementation of completely charge-free active-passive immunoprophylaxis: an observational cohort study. Expert Rev Vaccines 2021; 20:899-905. [PMID: 33960275 DOI: 10.1080/14760584.2021.1927723] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Objectives: China has implemented universal hepatitis B vaccination since 2002 and provided charge-free hepatitis B immunoglobulin (HBIG) to infants of HBV-infected mothers since July 2011. We aimed to compare mother-to-child transmission (MTCT) in children born before and since July 2011.Methods: In total, 5,149 children of HBV-infected mothers were tested for HBV markers. Group one contained 1,160 children born during August 2002-June 2011 and group two contained 3,989 children born during July 2011-June 2016.Results: In total, 92 (1.8%, 95% confidence interval [95%CI] 1.4-2.2) children were infected with HBV. None (0%, 95%CI 0.0-0.1) of 3,716 children of mothers with negative hepatitis B e antigen (HBeAg) was infected, whereas 92 (6.4%, 95%CI 5.2-7.8) of 1,433 children of HBeAg-positive mothers were infected (p < 0.0001). Among children of HBeAg-positive mothers, MTCT occurred in 10.3% (19/185) (95%CI 6.3-15.6) in group one and 5.8% (73/1,248) (95%CI 4.6-7.3) in group two (p = 0.02).Conclusions: Implementing charge-free active-passive immunoprophylaxis greatly reduces MTCT of HBV in children of HBeAg-positive mothers, highlighting the importance of timely administration of both hepatitis B vaccine and HBIG to prevent MTCT. The still remaining MTCT suggests that reducing maternal virus load before delivery is an additional important measure.
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Affiliation(s)
- Biyun Xu
- Departments of Laboratory Medicine and Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chenyu Xu
- Department of Obstetrics and Gynecology, Zhenjiang Fourth People's Hospital, Zhenjiang, Jiangsu, China
| | - Jing Feng
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Jie Chen
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Yanjing Rui
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Ziyan Qiu
- Department of Mass Health Care, Sihong County Maternal and Child Health Hospital, Sihong, Jiangsu, China
| | - Jihua Zhu
- Department of Mass Health Care, Rugao Municipal Center for Maternal and Child Health Care and Family Planning, Jiangsu, Jiangsu, China
| | - Jie Tang
- Department of Obstetrics and Gynecology, Wujin Hospital, Changzhou, Jiangsu, China
| | - Haiqin Lou
- Department of Mass Health Care, Nantong Municipal Maternal and Child Health Hospital, Nantong, Jiangsu, China
| | - Tingmei Chen
- Department of Obstetrics and Gynecology, Zhenjiang Fourth People's Hospital, Zhenjiang, Jiangsu, China
| | - Hongyan Ge
- Department of Obstetrics and Gynecology, Zhenjiang Fourth People's Hospital, Zhenjiang, Jiangsu, China
| | - Xiaoyun Ge
- Department of Mass Health Care, Nantong Municipal Maternal and Child Health Hospital, Nantong, Jiangsu, China
| | - Zhihong Wang
- Department of Mass Health Care, Rugao Municipal Center for Maternal and Child Health Care and Family Planning, Jiangsu, Jiangsu, China
| | - Hongyu Huang
- Departments of Laboratory Medicine and Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Mingjie Pan
- Departments of Laboratory Medicine and Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yimin Dai
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Yali Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Yi-Hua Zhou
- Departments of Laboratory Medicine and Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China
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