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The First Assessments of Pediatric HBV Immunization Coverage in Mauritania and Persistence of Antibody Titers Post Infant Immunizations. Vaccines (Basel) 2023; 11:vaccines11030588. [PMID: 36992174 DOI: 10.3390/vaccines11030588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/28/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Background: The Hepatitis B virus (HBV) vaccine is used worldwide as an efficient tool to prevent the occurrence of chronic HBV infection and the subsequent liver disease. However, despite decades of vaccination campaigns, millions of new infections are still reported every year. Here, we aimed to assess the nationwide HBV vaccination coverage in Mauritania as well as the presence of protective levels of the antibodies against HBV surface antigen (HBsAb) following vaccination in a sample of children immunized as infants. Methods: To evaluate the frequency of fully vaccinated and seroprotected children in Mauritania, a prospective serological study was conducted in the capital. First, we evaluated the pediatric HBV vaccine coverage in Mauritania between 2015 and 2020. Then, we examined the level of antibodies against HBV surface antigen (HBsAb) in 185 fully vaccinated children (aged 9 months to 12 years) by ELISA using the VIDAS hepatitis panel for Minividas (Biomerieux). These vaccinated children were sampled in 2014 or 2021. Results: In Mauritania, between 2016 and 2019, more than 85% of children received the complete HBV vaccine regimen. While 93% of immunized children between 0 and 23 months displayed HBsAb titer >10 IU/L, the frequency of children with similar titers decreased to 63, 58 and 29% in children aged between 24–47, 48–59 and 60–144 months, respectively. Conclusions: A marked reduction in the frequency of HBsAb titer was observed with time, indicating that HBsAb titer usefulness as marker of protection is short lived and prompting the need for more accurate biomarkers predictive of long-term protection.
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Zhang L, Xu W, Ma X, Sun X, Fan J, Wang Y. Virus-like Particles as Antiviral Vaccine: Mechanism, Design, and Application. BIOTECHNOL BIOPROC E 2023; 28:1-16. [PMID: 36627930 PMCID: PMC9817464 DOI: 10.1007/s12257-022-0107-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 01/09/2023]
Abstract
Virus-like particles (VLPs) are viral structural protein that are noninfectious as they do not contain viral genetic materials. They are safe and effective immune stimulators and play important roles in vaccine development because of their intrinsic immunogenicity to induce cellular and humoral immune responses. In the design of antiviral vaccine, VLPs based vaccines are appealing multifunctional candidates with the advantages such as self-assembling nanoscaled structures, repetitive surface epitopes, ease of genetic and chemical modifications, versatility as antigen presenting platforms, intrinsic immunogenicity, higher safety profile in comparison with live-attenuated vaccines and inactivated vaccines. In this review, we discuss the mechanism of VLPs vaccine inducing cellular and humoral immune responses. We outline the impact of size, shape, surface charge, antigen presentation, genetic and chemical modification, and expression systems when constructing effective VLPs based vaccines. Recent applications of antiviral VLPs vaccines and their clinical trials are summarized.
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Affiliation(s)
- Lei Zhang
- Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity, Department of Basic Medicine, Xi'an Medical University, Xi'an, 710021, Shaanxi China
| | - Wen Xu
- Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity, Department of Basic Medicine, Xi'an Medical University, Xi'an, 710021, Shaanxi China
| | - Xi Ma
- Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity, Department of Basic Medicine, Xi'an Medical University, Xi'an, 710021, Shaanxi China
| | - XiaoJing Sun
- Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity, Department of Basic Medicine, Xi'an Medical University, Xi'an, 710021, Shaanxi China
| | - JinBo Fan
- Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity, Department of Basic Medicine, Xi'an Medical University, Xi'an, 710021, Shaanxi China
| | - Yang Wang
- Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity, Department of Basic Medicine, Xi'an Medical University, Xi'an, 710021, Shaanxi China
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Shaver ZM, Anderson M, Bhebhe L, Baruti K, Chogaa WT, Ngidi J, Mbangiwa T, Taua M, Setlhare DR, Melamu P, Phinius BB, Musonda R, Mine M, Moyo S, Gaseitsiwe S. Decreased hepatitis B virus vaccine response among HIV-positive infants compared with HIV-negative infants in Botswana. AIDS 2022; 36:755-762. [PMID: 35113045 PMCID: PMC7614825 DOI: 10.1097/qad.0000000000003183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES We sought to determine vaccine antibody titres and the prevalence of hepatitis B surface antigen (HBsAg) in both HIV-positive and HIV-negative infants born to HIV-positive mothers in Botswana. DESIGN This was a retrospective cross-sectional study using 449 archived dried blood spot samples from both HIV-positive and HIV-negative infants collected between 2016 and 2018. METHODS We screened dried blood spot samples for HBsAg and determined hepatitis B surface antibody titres. We determined hepatitis B virus (HBV) genotypes by amplifying 415 base-pairs of the surface region. RESULTS HIV-positive infants mounted a significantly lower immune response to the HBV vaccine (P < 0.001). Furthermore, a lower proportion of HIV-positive infants had protective hepatitis B surface antibody titres (74.5%) than HIV-negative infants (89.2%) (P < 0.001). HIV-positive infants were older and 50.9% of them had completed vaccination (P = 0.018). Of the 449 infant samples tested, three (0.67%) were positive for HBsAg. Of the three HBsAg-positive infants, two had protective titres (>10 mIU/ml). Two of the three HBV-positive infants were infected with genotype D3 and had no drug-resistance or escape mutations. CONCLUSION Vaccine response was lower among HIV-positive infants compared with HIV-negative infants. HBV infections were observed in both HIV-positive and HIV-negative infants in Botswana. Studies to investigate additional preventive strategies to reduce HBV mother-to-child transmission are recommended.
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Affiliation(s)
| | | | | | - Kabo Baruti
- Botswana Harvard AIDS Institute Partnership, Gaborone
- University of Botswana, Department of Biological Sciences, Gabarone, Botswana
| | - Wonderful T. Chogaa
- Botswana Harvard AIDS Institute Partnership, Gaborone
- Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Julia Ngidi
- Botswana Harvard AIDS Institute Partnership, Gaborone
- National Health Laboratory, Ministry of Health and Wellness, Gaborone, Botswana
| | | | - Modiri Taua
- Botswana Harvard AIDS Institute Partnership, Gaborone
- National Health Laboratory, Ministry of Health and Wellness, Gaborone, Botswana
| | - Ditiro R. Setlhare
- Botswana Harvard AIDS Institute Partnership, Gaborone
- National Health Laboratory, Ministry of Health and Wellness, Gaborone, Botswana
| | - Pinkie Melamu
- Botswana Harvard AIDS Institute Partnership, Gaborone
| | | | | | - Madisa Mine
- Botswana Harvard AIDS Institute Partnership, Gaborone
- National Health Laboratory, Ministry of Health and Wellness, Gaborone, Botswana
| | - Sikhulile Moyo
- Botswana Harvard AIDS Institute Partnership, Gaborone
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Simani Gaseitsiwe
- Botswana Harvard AIDS Institute Partnership, Gaborone
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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Jiang M, Zhu B, Yao Q, Lou H, Zhang X. Anti-HBs levels in children under the age of two years born to HBV carrier mothers after immunoprophylaxis: a multicenter cross-sectional study. BMC Pediatr 2021; 21:492. [PMID: 34736435 PMCID: PMC8567679 DOI: 10.1186/s12887-021-02967-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 10/20/2021] [Indexed: 11/23/2022] Open
Abstract
Background Serological testing for the presence of Hepatitis B Virus (HBV) markers and anti-HBs titers in infants born to HBsAg positive women is critically important for estimation in immunisation programme. Methods This was a multi-center and cross-sectional study conducted in Zhejiang province, China. Children aged 7 to 24 months born to HBsAg positive women during December 2018 to February 2019, completed additional HBV serological markers screening. We indicated distribution of HBV serological markers and anti-HBs titers in children. Multiple logistic regression model with adjusted odds ratio and 95% confidence interval (ORadj and 95% CI) was used to explore the factors associated with inadequate immune response (anti-HBs titers< 100 mIU/ml) among children. Results A total of 1849 children were included. Overall 25 children tested HBsAg positive, giving HBsAg positive rate of 1.35%(95%CI: 0.83-1.88%). 92.00% (23/25) HBsAg positive children were delivered by HBeAg positive mothers. The proportion of protective seroconversion (anti-HBs titers≥10mIU/ml) was 99.29% in all children, and 86.48% children were reported with adequate anti-HBs titers (≥100mIU/ml).We found a significant higher proportions of early antenatal health care (< 13 gestational weeks), and term birth in children with adequate response compared with inadequate response (all P < 0.05). Logistic regression showed preterm birth was a negative factor for inadequate anti-HBs titers (ORadj = 1.868,95%CI 1.132-3.085,P = 0.015). Conclusions Children delivered by HBeAg positive mothers had higher risk of vertical transmission of HBV, despite completion of 3 doses of hepatitis B vaccine and HBIG injection. Inadequate anti-HBs level was significantly associated with preterm birth in HBsAg positive women.
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Affiliation(s)
- Min Jiang
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 17 Section 3, Renmin South Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Bo Zhu
- Department of Medical Laboratory Science, Women's Hospital, School of Medicine, Zhejiang University, Xueshi Road 1, Hangzhou, Zhejiang, 310006, People's Republic of China
| | - Qiang Yao
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 17 Section 3, Renmin South Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Haifeng Lou
- Department of Obstetrics, Women's Hospital, School of Medicine, Zhejiang University, Xueshi Road 1, Hangzhou, Zhejiang, 310006, People's Republic of China
| | - Xiaohui Zhang
- Department of Women's Health, Women's Hospital, School of Medicine, Zhejiang University, Xueshi Road 1, Hangzhou, Zhejiang, 310006, People's Republic of China.
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Miyakawa M, Yoshida LM, Nguyen HAT, Takahashi K, Le TH, Yasunami M, Ariyoshi K, Dang DA, Moriuchi H. Hepatitis B virus infection among pregnant mothers and children after the introduction of the universal vaccination program in Central Vietnam. Sci Rep 2021; 11:8676. [PMID: 33883610 PMCID: PMC8060295 DOI: 10.1038/s41598-021-87860-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 03/23/2021] [Indexed: 01/15/2023] Open
Abstract
A birth cohort study was conducted in Khan Hoa Province, central Vietnam between 2009 and 2012 to determine the seroprevalence of hepatitis B virus (HBV) in pregnant women and their children, and associated risk factors. We enrolled 1987 pregnant women with their babies at the birth phase, and 12.6% (95% confidence interval [CI]: 11.1–14.0) of mothers were hepatitis B surface antigen (HBsAg)+. At 2-year follow-up phase, 1339 (67.4%) children were enrolled of whom 76.6% completed hepatitis B vaccines (HepB) and 1.9% (95% CI: 1.2–2.7) were HBsAg+. When mothers were hepatitis B e antigen (HBeAg)+, 28.3% of children have got infected even with complete HepB. HBV infection in mothers, hepatitis B surface antibody (anti-HBs antibody) below the seroprotective level in children, and mothers with pre-pregnancy low body mass index were associated with HBV infection in children. Meanwhile, HBV infection in children, older maternal age, no or incomplete doses of HepB, and boys were associated with anti-HBs antibody below the seroprotective level in children. Our birth cohort study determined a low rate of congenital HBV infection and associated risk factors in Vietnam, however further studies are needed to advance prevention including anti-viral therapy in pregnant women at high risk.
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Affiliation(s)
- Masami Miyakawa
- Department of Pediatrics, Nagasaki University Hospital, Nagasaki University, Nagasaki, 852-8102, Japan
| | - Lay-Myint Yoshida
- Department of Pediatric Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan. .,Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8102, Japan.
| | | | - Kensuke Takahashi
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Tho Huu Le
- Khanh Hoa Provincial Health Service Department, Nha Trang, 650000, Vietnam
| | - Michio Yasunami
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Koya Ariyoshi
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Duc-Anh Dang
- National Institute of Hygiene and Epidemiology, Hanoi, 100000, Vietnam
| | - Hiroyuki Moriuchi
- Department of Pediatrics, Nagasaki University Hospital, Nagasaki University, Nagasaki, 852-8102, Japan.,Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8102, Japan
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Safadi R, Khoury T, Saed N, Hakim M, Jamalia J, Nijim Y, Farah N, Nuser T, Natur N, Mahamid M, Amer J, Roppert PL, Gerlich WH, Glebe D. Efficacy of Birth Dose Vaccination in Preventing Mother-to-Child Transmission of Hepatitis B: A Randomized Controlled Trial Comparing Engerix-B and Sci-B-Vac. Vaccines (Basel) 2021; 9:vaccines9040331. [PMID: 33915943 PMCID: PMC8066861 DOI: 10.3390/vaccines9040331] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/17/2022] Open
Abstract
Background and aims: Peripartum transmission of hepatitis B virus (HBV) from an infected mother to the child can be prevented in most but not all cases by immediate vaccination of the newborn. The aim of this study was to compare the efficacy of two licensed hepatitis B vaccines, Engerix-B versus Sci-B-Vac, in preventing peripartum HBV transmission. Methods: A prospective multicenter randomized controlled study in 4 delivery centers was performed from 2009 to 2014. HBsAg positive pregnant women and their newborns were recruited at the delivery rooms. All newborns received Hepatitis B Immune Globulin within 10 h after birth, as well as active HBV vaccination at 0, 1 and 6 months of age. Maternal assessment at delivery included transaminases, blood count, international normalized ratio and viral status. Infants were tested for HBsAg, anti-HBc and anti-HBs at 12 months of age. Results: In the intention to treat (ITT), 171 infant and mother pairs fulfilled the study enrollment criteria and completed follow up, 82 received Engerix-B and 89 Sci-B-Vac. Maternal parameters and viral status were similar in both groups. At 12 months of age, the Sci-B-Vac group had lower HBsAg carriage rates (1/89, 1.1%) than the Engerix-B group (5/82, 6.1%) with borderline significance (risk difference of −0.05, 95% CI −0.11–0.007, t-test = 0.05), and borderline significance lower vaccine failure rates with anti-HBs < 10 mIU/mL in the Sci-B-Vac (2/89, 2.2%) than in the Engerix-B (8/82, 9.8%, p = 0.05). Higher seroprotection rates were found in the Sci-B-Vac group with all anti-HBs titer stratifications of >10 mIU/mL (p = 0.05), >100 mIU/mL (p = 0.05) and >1000 mIU/mL (p = 0.01). Active/passive vaccination was effective in 10/13 cases with maternal HBV DNA levels > 7 log10 IU/mL up to 9.5 log10 IU/mL, but failed in 3 cases for unknown reasons. Conclusion: Sci-B-Vac was superior to Engerix-B in preventing peripartum HBV transmission in neonates from HBsAg+ mothers and induces significantly higher anti-HBs levels. NIH registration number: NCT 01133184.
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Affiliation(s)
- Rifaat Safadi
- Liver Unit, Institute of Gastroenterology, Hadassah-Hebrew University Hospital, Jerusalem 91120, Israel; (R.S.); (N.N.); (J.A.)
- Liver Unit, Holy Family Hospital, Nazareth 1613101, Israel; (N.S.); (N.F.); (M.M.)
| | - Tawfik Khoury
- Liver Unit, Institute of Gastroenterology, Hadassah-Hebrew University Hospital, Jerusalem 91120, Israel; (R.S.); (N.N.); (J.A.)
- Galilee Medical Center, Department of Gastroenterology, Nahariya 22100, Israel
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
- Correspondence: ; Tel.: +972-509870611
| | - Nizar Saed
- Liver Unit, Holy Family Hospital, Nazareth 1613101, Israel; (N.S.); (N.F.); (M.M.)
| | - Marwan Hakim
- Nazareth Hospital, Nazareth 1613101, Israel; (M.H.); (Y.N.)
| | - Jeryes Jamalia
- French Hospital, Nazareth 1613101, Israel; (J.J.); (T.N.)
| | - Yousef Nijim
- Nazareth Hospital, Nazareth 1613101, Israel; (M.H.); (Y.N.)
| | - Nicola Farah
- Liver Unit, Holy Family Hospital, Nazareth 1613101, Israel; (N.S.); (N.F.); (M.M.)
| | - Tawfik Nuser
- French Hospital, Nazareth 1613101, Israel; (J.J.); (T.N.)
| | - Nidaa Natur
- Liver Unit, Institute of Gastroenterology, Hadassah-Hebrew University Hospital, Jerusalem 91120, Israel; (R.S.); (N.N.); (J.A.)
- The Cheryl Spencer Department of Nursing, Faculty of Social Welfare and Health Science, University of Haifa, Haifa 3498838, Israel
| | - Mahmud Mahamid
- Liver Unit, Holy Family Hospital, Nazareth 1613101, Israel; (N.S.); (N.F.); (M.M.)
- Shaare Zedek Medical Center, Department if Gastroenterology and Liver Diseases, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Johnny Amer
- Liver Unit, Institute of Gastroenterology, Hadassah-Hebrew University Hospital, Jerusalem 91120, Israel; (R.S.); (N.N.); (J.A.)
- Dajani Hospital, Jerusalem 91120, Israel
| | - Pia L. Roppert
- National Reference Center for Hepatitis B Viruses and Hepatitis D Viruses, Institute of Medical Virology, Justus Liebig University Giessen, 35392 Giessen, Germany; (P.L.R.); (W.H.G.); (D.G.)
| | - Wolfram H. Gerlich
- National Reference Center for Hepatitis B Viruses and Hepatitis D Viruses, Institute of Medical Virology, Justus Liebig University Giessen, 35392 Giessen, Germany; (P.L.R.); (W.H.G.); (D.G.)
| | - Dieter Glebe
- National Reference Center for Hepatitis B Viruses and Hepatitis D Viruses, Institute of Medical Virology, Justus Liebig University Giessen, 35392 Giessen, Germany; (P.L.R.); (W.H.G.); (D.G.)
- German Center for Infection Research (DZIF), Partner Site Giessen-Marburg-Langen, 35392 Giessen, Germany
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Kumar D, Srivastava S, Tevatia MS, Kaur K, Sood A, Manrai M, Mukerjee R. Hepatitis B vaccination in Indian children: Seroprotection and age-related change in antibody titres. Med J Armed Forces India 2020; 77:200-204. [PMID: 33867638 DOI: 10.1016/j.mjafi.2020.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/29/2020] [Indexed: 11/28/2022] Open
Abstract
Background Childhood immunization against hepatitis B is one of the most effective strategies for reducing the global burden of chronic hepatitis B infection and its sequelae. There are limited data from India on both the anti-Hep B antibody titres in children after vaccination and the age-related decline in the titres. This study was planned to estimate the proportion of children in the age group of 1-10 years who develop protective levels of anti-hepatitis B antibodies after childhood vaccination and to examine the change in antibody titres with age in these children. Methods A hospital-based cross-sectional study was carried out in children admitted to the hospital for various ailments. Basic demographic data, vaccination history and HBsAg status of the mother were recorded. All the enrolled children were evaluated for HBsAg and anti hepatitis B surface antibody (anti-HBS) titres. Institutional ethical clearance was obtained, and informed consent from the parents of the children was taken before drawing samples. Results We found that 68.86% Confidence Interval ((CI): 59.8-76.8%) of the children showed protective antibody titres after vaccination, while 31.14% (CI: 23.1-40.2%) of the children had titres less than 10 IU/L. Although 100% of children in the age group from birth to three years had titres more than 10 IU/L, this percentage showed a decline across the age groups, and 60% of children aged 9-10 years had titres less than 10 IU/L. Conclusion Childhood vaccination against hepatitis B is effective in 68% children, and the antibody levels showed a steady decline with increasing age.
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Affiliation(s)
- Dharmendra Kumar
- Senior Advisor (Medicine) & Gastroenterologist, Medical Division, Command Hospital (SC), Pune, India
| | - Sharad Srivastava
- Senior Advisor (Medicine) & Gastroenterologist, Medical Division, Command Hospital (SC), Pune, India
| | - M S Tevatia
- Consultant (Pathology), Command Hospital (SC), Pune, India
| | - Kanwaljit Kaur
- Classified Specialist (Pathology), Base Hospital Barrackpore, Kolkata, India
| | - Amit Sood
- Classified Specialist (Pediatrics), Command Hospital (WC), Chandimandir, India
| | - Manish Manrai
- Associate Professor, Dept of Internal Medicine, Armed Forces Medical College, Pune, India
| | - Reema Mukerjee
- Professor, Dept of Community Medicine, Armed Forces Medical College, Pune, India
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Qian C, Liu X, Xu Q, Wang Z, Chen J, Li T, Zheng Q, Yu H, Gu Y, Li S, Xia N. Recent Progress on the Versatility of Virus-Like Particles. Vaccines (Basel) 2020; 8:vaccines8010139. [PMID: 32244935 PMCID: PMC7157238 DOI: 10.3390/vaccines8010139] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/15/2020] [Accepted: 03/15/2020] [Indexed: 12/11/2022] Open
Abstract
Virus-like particles (VLPs) are multimeric nanostructures composed of one or more structural proteins of a virus in the absence of genetic material. Having similar morphology to natural viruses but lacking any pathogenicity or infectivity, VLPs have gradually become a safe substitute for inactivated or attenuated vaccines. VLPs can achieve tissue-specific targeting and complete and effective cell penetration. With highly ordered epitope repeats, VLPs have excellent immunogenicity and can induce strong cellular and humoral immune responses. In addition, as a type of nanocarrier, VLPs can be used to display antigenic epitopes or deliver small molecules. VLPs have thus become powerful tools for vaccinology and biomedical research. This review highlights the versatility of VLPs in antigen presentation, drug delivery, and vaccine technology.
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Affiliation(s)
- Ciying Qian
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
| | - Xinlin Liu
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
| | - Qin Xu
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
| | - Zhiping Wang
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
| | - Jie Chen
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
| | - Tingting Li
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
| | - Qingbing Zheng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; (Q.Z.); (H.Y.)
| | - Hai Yu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; (Q.Z.); (H.Y.)
| | - Ying Gu
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; (Q.Z.); (H.Y.)
- Correspondence: (Y.G.); (S.L.)
| | - Shaowei Li
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; (Q.Z.); (H.Y.)
- Correspondence: (Y.G.); (S.L.)
| | - Ningshao Xia
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.L.); (Q.X.); (Z.W.); (J.C.); (T.L.); (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; (Q.Z.); (H.Y.)
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Serological Changes against Hepatitis B Surface Antigen in Children and Adolescents Receiving Chemotherapy for Acute Leukemia. Mediterr J Hematol Infect Dis 2019; 11:e2019052. [PMID: 31528318 PMCID: PMC6736336 DOI: 10.4084/mjhid.2019.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/09/2019] [Indexed: 12/15/2022] Open
Abstract
Background Vaccination for hepatitis B virus (HBV) after chemotherapy among pediatric patients with acute Leukemia is still a debated issue. We investigated HBV immunity before and after chemotherapy and assessed immune response to re-vaccination after chemotherapy. Methods We retrospectively analyzed data of children and adolescents aged <19 years requested for vaccination after chemotherapy for acute leukemia to evaluate hepatitis B surface antibody (HBsAb) status before and after chemotherapy and to identify factors related to HBsAb positivity after chemotherapy. Results Of 89 enrolled patients, 61 (68.5%) with acute leukemia were HBsAb positive before chemotherapy. Of these 61 patients, 48 (78.7%) seroconverted to HBsAb negative status after chemotherapy; there were 76 (85.4%) HBsAb negative patients after chemotherapy. HBsAb positive patients when compared to HBsAb negative patients after chemotherapy had a significantly higher HBsAb positive rate (100.0% vs. 63.2%, p=0.008) before chemotherapy. Following HBsAb testing after one dose of the HBV vaccination, 33 (43.4%) of the 76 HBsAb negative patients seroconverted to an HBsAb positive status. HBsAb positive patients after a single dose of HBV vaccination had a significantly higher HBsAb positive rate at the time of diagnosis compared to HBsAb negative patients (84.8% vs. 48.8%, p=0.001). Conclusions Based on these results, HBV re-vaccination after chemotherapy is recommended for all children and adolescents with acute leukemia. In addition, further investigation is required to improve the immunogenicity of HBV re-vaccination.
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Norizuki M, Kitamura T, Komada K, Sugiyama M, Mizokami M, Xeuatvongsa A, Som-Oulay V, Vongphrachanh P, Machida M, Wada K, Ishii K, Kiyohara T, Wakita T, Hachiya M. Serologic testing of randomly selected children after hepatitis B vaccination: a cross-sectional population-based study in Lao People's Democratic Republic. BMC Infect Dis 2019; 19:507. [PMID: 31182043 PMCID: PMC6558699 DOI: 10.1186/s12879-019-4086-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 05/14/2019] [Indexed: 01/25/2023] Open
Abstract
Background Population immunity against hepatitis B virus (HBV) in Lao People’s Demographic Republic (PDR) has not been examined since the national HBV vaccination program was started in 2002. Vaccine has been observed to be frozen at times during cold-chain transport in vaccination programs in Lao PDR and other developing countries, which will inactivate the vaccine. Therefore, this study used post-vaccination serologic testing to evaluate the effects of HBV immunization in Lao PDR. Methods A cross-sectional serologic study was conducted among children (age range, 5–9 years) and mothers (15–45 years) who were randomly selected using probability-proportional-to-size sampling from central Lao PDR. Blood samples were collected as dried blood spots (DBS) and analyzed using chemiluminescent microparticle immunoassay to detect anti-hepatitis B surface (HBs) titers. We also evaluated the correlation between anti-HBs levels measured in DBS and serum among healthy healthcare workers in Vientiane. Results Anti-HBs titers from DBS were strongly correlated with serum levels (correlation coefficient = 0.999) in all 12 healthcare workers evaluated. A linear regression model showed that 10 mIU/mL of serum anti-HBs was equivalent to 3.45 mIU/mL (95% CI: 3.06–3.85) of DBS. Among 911 mother-child pairs tested, 171 children had documentation of vaccination. Of the 147 children who had received ≥3 doses of the hepatitis B vaccine, 1 (0.7%) was positive for anti-HBs. The remaining 24 children received the hepatitis B vaccine only twice, once or no dose. Conclusions The results showed extremely low positivity for anti-HBs among vaccinated children in central Lao PDR. Therefore, post-vaccination serologic testing is important to evaluate population immunity against HBV infection. DBS testing is a potential low-cost tool to evaluating the effectiveness of HBV vaccination programs.
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Affiliation(s)
- Masataro Norizuki
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan. .,Graduate School of Medicine, International University of Health and Welfare Graduate School, Minato, Tokyo, Japan.
| | - Tomomi Kitamura
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan
| | - Kenichi Komada
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan
| | - Masaya Sugiyama
- The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan
| | - Masashi Mizokami
- The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan
| | - Anonh Xeuatvongsa
- National Immunization Program, Ministry of Health, Lao PDR, Simeuang Road, Vientiane, Lao PDR
| | - Vilasak Som-Oulay
- National Center for Laboratory and Epidemiology, Ministry of Health, Lao PDR, Simeuang Road, Vientiane, Lao PDR
| | - Phengta Vongphrachanh
- National Center for Laboratory and Epidemiology, Ministry of Health, Lao PDR, Simeuang Road, Vientiane, Lao PDR
| | - Munehito Machida
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan.,Department of Global Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and health Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Koji Wada
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan.,Graduate School of Medicine, International University of Health and Welfare Graduate School, Minato, Tokyo, Japan
| | - Koji Ishii
- Department of Virology II, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Tomoko Kiyohara
- Department of Virology II, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Takaji Wakita
- Department of Virology II, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Masahiko Hachiya
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan
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11
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Fougère Y, El Houss S, Suris JC, Rouvenaz-Defago S, Miletto D, Von der Weid L, Willen F, Williams-Smith JA, Gehri M, Crisinel PA. High coverage of hepatitis B vaccination and low prevalence of chronic hepatitis B in migrant children dictate a new catch-up vaccination strategy. Vaccine 2018; 36:4501-4506. [PMID: 29907480 DOI: 10.1016/j.vaccine.2018.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/03/2018] [Accepted: 06/04/2018] [Indexed: 01/05/2023]
Abstract
BACKGROUND Worldwide coverage of hepatitis B (HB) vaccination is increasing. This should be considered when determining the best strategy for catch-up HB vaccination in migrant children, who rarely have written proof of past immunizations. This study aimed to estimate HB vaccine protection, chronic HB prevalence and to identify determinants of vaccine protection. METHODS Newly arrived migrant children at Lausanne University Hospital from October 2014 to July 2017 were prospectively enrolled. Children and adolescents aged 1-18 years were approached for inclusion if they had no proof of past vaccinations and accepted a single dose of injected HB vaccine. HB surface antibody (anti-HBs) serology was performed after 4-6 weeks. Anti-HBs ≥100 IU/L were considered consistent with a booster-type antibody response. Patients with anti-HBs <100 IU/L received additional dose(s) of HB vaccine, after exclusion of chronic HB in children with anti-HBs <10 IU/L. Potential determinants of vaccine response were compared between children with and without booster-type response. RESULTS Two hundred children were available for analysis. Median age was 8.9 years (IQR 4.8-12.9), and 97 (49%) were female. The majority (n = 124, 62%) came from the region classified by the WHO as eastern Mediterranean. One hundred and sixty-one children (81%) had a booster-type antibody response. Only 1 patient (<1%) had chronic HB. In the multivariate analysis, younger age (OR per decreasing-year, 1.28; 95%CI, 1.05-1.57; p = 0.017) and migration from an urban area (OR 1.16; 95%CI, 1.01-1.33; p = 0.043) were the only significant determinants of booster-type response. CONCLUSION Post-vaccine serology may be used to identify a high proportion of individuals in our pediatric migrant population with previous immunization for HB. Our study also showed extremely low prevalence of chronic HB. No variable could definitively determine the results of serology. Post-vaccine serology represents the most effective strategy in this context of high vaccine coverage.
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Affiliation(s)
- Yves Fougère
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland.
| | - Samir El Houss
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | - Joan-Carles Suris
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | - Sylvie Rouvenaz-Defago
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | - Damien Miletto
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | - Lucie Von der Weid
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | - Fanny Willen
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | | | - Mario Gehri
- Service of Pediatrics, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
| | - Pierre Alex Crisinel
- Unit of Pediatric Infectious Diseases and Vaccinology, Department Women-Mother-Child, Lausanne University Hospital, Switzerland
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Yue X, Ge C, Zhuge S, He H, Yang H, Xu H, Huang A, Zhao Y. Changes and analysis of anti-HBs titres after primary immunization in 1- to 16-year-old Chinese children: A hospital-based study. J Viral Hepat 2018; 25:373-380. [PMID: 29091317 DOI: 10.1111/jvh.12818] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/02/2017] [Indexed: 12/12/2022]
Abstract
Immunization with the hepatitis B vaccine is the most effective measure to prevent Hepatitis B Virus (HBV) infection. The aim of this study was to investigate the change in antibody levels induced by administration of the hepatitis B vaccine in children aged 1-16 year old in a large sample sized investigation. HBV markers were determined in 93 326 1- to 16-year-old hospitalized children who completed primary immunization as infants from south-west China, Chongqing. Analyses were performed on anti-HBs titre changes with increasing age, and the revaccination effect was evaluated in children aged 7-14. The percentage of protective antibody was between 45.29% and 63.33% in all age groups, but was higher in the 1-, 2- and 3-year-old groups (90.31%, 83.95% and 71.82%, respectively), and the rate of high-responder was 5.03%-10.56%, except in the 1-year-old group (23.33%). Additionally, 3.33%-25.79% of subjects had not seroconverted. There was no significant difference in antibody levels between girls and boys (P > .05). The Geometric Mean Titers in children with confirmed revaccination history were significantly higher than those with unknown or no revaccination history (P < .0001). In conclusion, the overall rate of protective anti-HBs was 67.10% with consecutive age groups from 1 to 16, it decreased from 90.31% to 45.29% for 1- to 8-year-old individuals, and interestingly, the rate increased from 45.46% to 63.33% for subjects aged 9-15. Anti-HBs titres were significantly improved after revaccination. Booster doses are recommended for those without seroconversion, especially children who live in school with other students or have family members with positive HBsAg.
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Affiliation(s)
- X Yue
- Pediatric Research Institute, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
| | - C Ge
- Pediatric Research Institute, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
| | - S Zhuge
- Pediatric Research Institute, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
| | - H He
- Pediatric Research Institute, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
| | - H Yang
- Pediatric Research Institute, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
| | - H Xu
- Infection Department of the Children's Hospital, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child development and Critical Disorders, Chongqing, China
| | - A Huang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Y Zhao
- Pediatric Research Institute, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
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Prevalence of anti-hepatitis B surface antibodies among children and adolescents vaccinated in infancy and effect of booster dose administered within a pilot study. Epidemiol Infect 2017; 145:2890-2895. [PMID: 28903797 DOI: 10.1017/s0950268817002126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We determined the prevalence of anti-hepatitis B surface antibodies (anti-HBs) among children and adolescents vaccinated for hepatitis B virus in infancy as part of the routine vaccination programme. A representative serum sample of the Israeli population age 0-19 was tested. In a separate pilot study, a booster dose of hepatitis B vaccine was administered to 31 candidates for national service, who were fully vaccinated in infancy and tested negative for hepatitis B surface antibodies at age 17-19 years and anti-HBs antibodies were assessed 8 weeks later. Of the 1273 samples tested, 631 (49·6%) were positive to anti-HBs antibodies. Seropositivity rates were 89·5% among infants aged 6-12 months and declined significantly with age to 20·7% at age 19 years. No differences in seropositivity rates were observed between Jews and Arabs, males and females and those born in Israel and in other countries. Seroconversion rate among the 31 individuals who received a booster dose was 90·3% (95% CI: 75·1-96·6%). We recommend a booster dose for healthcare personnel before starting to work at the health care facility.
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Serological and molecular epidemiological outcomes after two decades of universal infant hepatitis B virus (HBV) vaccination in Nunavut, Canada. Vaccine 2017; 35:4515-4522. [DOI: 10.1016/j.vaccine.2017.07.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/28/2017] [Accepted: 07/13/2017] [Indexed: 12/12/2022]
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Impact and long-term protection of hepatitis B vaccination: 17 years after universal hepatitis B vaccination in Tunisia. Epidemiol Infect 2016; 144:3365-3375. [PMID: 27535719 DOI: 10.1017/s0950268816001849] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) vaccination has been part of the Expanded Programme of Immunization (EPI) in Tunisia since 1995. The aim of this study was to evaluate, for the first time, the impact of mass vaccination in Tunisia 17 years after this programme was implemented, and in parallel, assess the long-term persistence of anti-HBs antibody in the vaccinated Tunisian population. A total of 1422 students were recruited (703 vaccinated, 719 non-vaccinated). HBV seromarkers were checked. None of the students from either group had positive HBsAg. The overall prevalence of anti-HBc was 0·8%. A Significantly higher prevalence of anti-HBc was noted in unvaccinated students than in vaccinated (1·4% vs. 0·3%, P = 0·02). The overall seroprotection rate (anti-HBs titre ⩾10 mIU/ml) was 68·9% in vaccinated subjects. Seroprotection rates and geometric mean titres decreased significantly with increasing age, reflecting waning anti-HBs titre over time. No significant difference was detected between seroprotection rates and gender or students' area of origin. Incomplete vaccination was the only factor associated with an anti-HBs titre <10 mIU/ml. This study demonstrates the excellent efficacy of the HBV vaccination programme in Tunisia 17 years after its launch. However, a significant decline of anti-HBs seroprotection has been observed in ⩾15-year-old adolescents which places them at risk of infection. Additional studies are needed in hyperendemic regions in Tunisia.
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