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Langat B, Muge EK, Night D, Okoth F, Ochwedo KO, Songok EM. Sero-prevalence of hepatitis B virus and compliance with hepatitis B vaccination schedules among outpatient clinic attendees in Nairobi. PLoS One 2023; 18:e0281256. [PMID: 36730277 PMCID: PMC9894478 DOI: 10.1371/journal.pone.0281256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/18/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Hepatitis B is becoming a growing public health problem in Kenya. To combat the threat, HBV vaccination should be recommended, particularly for individuals who are not covered by the national immunization program. Vaccination provides sero-protection rates approaching 95% among healthy adults after completing the three-dose vaccination course, but decreases to 87% among those who receive only two doses, emphasizing the importance of completing the three-dose vaccination course. However, data on adult adherence to HBV multi-dose vaccines in Sub-Saharan Africa are limited, despite the fact that this information is critical for prevention. As a result, more research on HBV vaccine dose completion is required. The purpose of this study is to estimate the prevalence of hepatitis B virus infection among out-patient clinic attendees in Nairobi, Kenya, as well as to identify beneficiaries of free vaccination and barriers to completing the recommended vaccine doses. METHODS Between July 30th and September 30th, 2015, 2644 outpatient clinic attendees aged ≥ 4 were recruited from three hospitals in Nairobi County, Kenya: Mama Lucy, Riruta, and Loco. Self-administered questionnaires were used to collect socio-demographic information, and blood samples were tested for hepatitis B surface antigen (HBsAg) using the KEMRI HEPCELL Rapid® (Hepatitis B Detection kit) test kit. Individuals who tested negative for HBsAg were given a free course of three doses of HBV vaccine. The vaccination register provided information on the number of doses administered. RESULTS The average age of the study population was 31.4 years (range: 4-66), with females accounting for 59.2%. 1.82% (48/2644) of the participants tested positive for HBsAg. Among the 2596 individuals eligible for vaccination, 66% (1720/2596) received at least one dose, and 51.8% (1345/2596) received all three doses. Vaccination acceptance increased with age, with older patients more likely to return for subsequent dose (OR>1 for second and third dose). Unavailability and failure to contact client were cited as significant (p<0.0001) barrier to vaccination completion by 53.7% (666/1226, 95% CI 0.5-0.6) and 37% (454/1226, 95% CI 0.3-0.4) of respondents respectively. CONCLUSION The prevalence of HBV infection among outpatient clinic attendees highlights the importance of expanding HBV immunization programs in Kenya. However, given the low vaccination completion rate, there is a need for public awareness of the vaccine's importance in preventing HBV and HBV-related complications.
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Affiliation(s)
- Benard Langat
- Department of Medical Biochemistry, University of Nairobi, Nairobi, Kenya
- * E-mail:
| | - Edward K. Muge
- Department of Medical Biochemistry, University of Nairobi, Nairobi, Kenya
| | - Doris Night
- Centre for Virus Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Fredrick Okoth
- Centre for Virus Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Kevin O. Ochwedo
- Faculty of Science and Technology, Department of Biology, University of Nairobi, Nairobi, Kenya
| | - Elijah M. Songok
- Centre for Virus Research, Kenya Medical Research Institute, Nairobi, Kenya
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Seroprevalence and factors associated with hepatitis B virus exposure in the incarcerated population from southern Brazil. PLoS One 2022; 17:e0278029. [PMID: 36413542 PMCID: PMC9681091 DOI: 10.1371/journal.pone.0278029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022] Open
Abstract
Hepatitis B viral infection (HBV) in prisons poses serious public health challenges because it significantly contributes to the increase in both morbidity and mortality indicators worldwide. Research has shown high HBV prevalence among inmates when compared to the general population. In this study, we estimated the prevalence of HBV exposure and its risk factors among 1,132 inmates detained in high security institutions. A cross-sectional, epidemiological study was carried out in 11 male-only prisons in the State of Paraná, Brazil, between May 2015 to December 2016. HBV exposure was explored using a variety of methods, including HBsAg, anti-HBs, and total anti-HBc. Data were analyzed using univariate and multivariate techniques. The overall prevalence of HBV exposure was 11.9% (95% CI: 10.9-12.8), totaling 135 individuals. In the multivariate analyses, risk factors that remained statistically significant were related to the penitentiary location (Francisco Beltrão; OR = 5.59; 95% CI: 3.32-9.42), age (over 30 years; OR = 5.78; 95% CI: 3.58-9.34), undergoing tattooing procedures in prison (OR = 1.64; 95% CI: 1.03-2.60), self-reported sexual activities with a known drug user (OR = 1.67; 95% CI: 1.12-2.48) and having a history of previous history of hepatitis B or C infection (OR = 2.62; 95% CI: 1.48-4.64). The findings indicate that public policies-including vaccination, early diagnosis, harm reduction strategies, and adequate treatment-should be designed and delivered in the same way for both the incarcerated and the general population in order to reduce the prevalence of HBV and its associated consequences.
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Liu W, Zhuang T, Xia R, Zou Z, Zhang L, Shen M, Zhuang G. Modelling the prevalence of hepatitis B towards eliminating it as a major public health threat in China. BMC Public Health 2022; 22:1179. [PMID: 35698098 PMCID: PMC9195287 DOI: 10.1186/s12889-022-13594-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 06/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The World Health Organization (WHO) requires reduction in the prevalence of hepatitis B virus (HBV) surface antigen (HBsAg) in children to 0.1% by 2030, a key indicator for eliminating viral hepatitis as a major public health threat. Whether and how China can achieve this target remains unknown, although great achievements have been made. We aimed to predict the decline of HBsAg prevalence in China and identify key developments needed to achieve the target. METHODS An age- and time-dependent dynamic compartmental model was constructed based on the natural history of HBV infection and the national history and current status of hepatitis B control. The model was run from 2006 to 2040 to predict the decline of HBsAg prevalence under three scenarios including maintaining current interventions (status quo), status quo + peripartum antiviral prophylaxis (PAP, recommended by WHO in 2020), and scaling up current interventions + PAP. RESULTS Under the status quo, HBsAg prevalence would decrease steadily in all age groups, but the WHO's target of 0.1% prevalence in children aged < 5 years would not be achieved until 2037. The results are robust according to sensitivity analyses. Under the status quo + PAP, the HBsAg prevalence of children aged < 5 years would significantly decrease with the introduction of PAP, and the higher the successful interruption coverage is achieved by PAP, the more significant the decline. However, even if the successful interruption coverage reaches 90% by 2030, the 0.1% prevalence target would not be met until 2031. Under the scaling up current interventions + PAP, combined with scale-up of current interventions, the WHO's 0.1% target would be achieved on time or one year in advance if PAP is introduced and the successful interruption coverage is scaled up to 80% or 90% by 2030, respectively. CONCLUSIONS It is difficult for China to achieve the WHO's target of 0.1% HBsAg prevalence in children by 2030 by maintaining current interventions. PAP may play an important role to shorten the time to achieve the target. A comprehensive scale-up of available interventions including PAP will ensure that China achieves the target on schedule.
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Affiliation(s)
- Wenjun Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Tianyi Zhuang
- Xi'an Center for Disease Control and Prevention, Xi'an, Shaanxi, China
| | - Ruyi Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Zhuoru Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Lei Zhang
- China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China.,Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
| | - Mingwang Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China. .,China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China. .,Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an, Shaanxi, China.
| | - Guihua Zhuang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China. .,China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China. .,Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an, Shaanxi, China.
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Determinants of Hepatitis B Virus (HBV) Infection Among University Students in Central Bangladesh. J Community Health 2021; 47:136-142. [PMID: 34491507 DOI: 10.1007/s10900-021-01025-9] [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] [Accepted: 08/14/2021] [Indexed: 01/01/2023]
Abstract
This study aimed to determine the seroprevalence and determinants of hepatitis B virus (HBV) infection among university students in Bangladesh. This cross-sectional study was conducted among 614 students from five universities in central Bangladesh. Data were collected on demographic information, immunization history, medical and blood transfusion history through the face-to-face interview. Blood samples were collected and screened for anti-HBsAg using ELISA, HBsAg Rapid Test-cassette, and immune chromatographic test. The overall seroprevalence of HBV infection was 5.0%, and vaccination coverage was 19.2% among the participants. Students having a history of surgery (OR 11.004, 95% CI 3.211-37.707), blood transfusion (OR 5.651, 95% CI 0.965-33.068), being married (OR 4.776, 95% CI 1.508-15.127), and not being vaccinated (OR 9.825, 95% CI 1.130-85.367) were at higher risk of being infected by HBV. This study showed the endemicity of HBV infection among the Bangladeshi population. Marriage, surgical or blood transfusion history, not being vaccinated were the determinants of HBV infection within the study population. Public health initiatives for preventing HBV infection at the university levels should be envisaged.
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De Brier N, Koc ÖM, De Buck E, Muylaert A, Nevens F, Vanbrabant M, Vandeloo J, Van Remoortel H, Robaeys G, Compernolle V. Hepatitis B virus prevalence in first-time blood donors in Flanders, Belgium: Impact of universal vaccination and migration. Transfusion 2021; 61:2125-2136. [PMID: 33955570 DOI: 10.1111/trf.16431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/24/2021] [Accepted: 03/30/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Transfusion-transmissible infections such as hepatitis B virus (HBV) remain a major concern for the safety of blood transfusion. This cross-sectional study aimed to assess the trend of HBV prevalence and associated risk factors among a first-time donor population in a low endemic country. STUDY DESIGN AND METHODS Between 2010 and 2018, blood samples were collected from first-time donors presented at donor collection sites of Belgian Red Cross-Flanders. They were tested for hepatitis B surface antigen (HBsAg), hepatitis B core antibodies (anti-HBc), and HBV DNA, HIV and hepatitis virus C (HCV) antibodies and RNA, and syphilis antibodies. RESULTS A total of 211,331 first-time blood donors (43.7% males, median age 25 years) were analyzed. HBsAg prevalence decreased from 0.06% in 2010 to 0.05% in 2018 (p = .004) and this declining trend was accompanied by an increased number of donors in the HBV vaccinated birth cohort (p < .001). HBsAg prevalence was 0.33% in foreign-born donors and 0.02% in Belgian natives (p < .001). Multivariate risk profiling showed that anti-HBc positivity was significantly associated with mainly foreign-born donors (odds ratio [OR] = 9.24) but also with older age (OR = 1.06), male gender (OR = 1.32), year of blood donation (OR = 0.94), and co-infections with HCV (OR = 4.31) or syphilis (OR = 4.91). DISCUSSION The decreasing trend in HBV prevalence could mainly be explained by the introduction of the universal HBV vaccination. Being born in endemic areas was the most important predictor for HBV infection while the co-infections with syphilis suggest unreported sexual risk contacts.
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Affiliation(s)
- Niels De Brier
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium
| | - Özgür M Koc
- Department of Gastroenterology and Hepatology, Ziekenhuis Oost-Limburg, Genk, Belgium.,Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,Department of Medical Microbiology, School of NUTRIM, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Emmy De Buck
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium.,Department of Public Health and Primary Care, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - An Muylaert
- Blood Service, Belgian Red Cross, Mechelen, Belgium
| | - Frederik Nevens
- Department of Gastroenterology and Hepatology, University Hospitals KU Leuven, Leuven, Belgium
| | | | | | - Hans Van Remoortel
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium
| | - Geert Robaeys
- Department of Gastroenterology and Hepatology, Ziekenhuis Oost-Limburg, Genk, Belgium.,Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals KU Leuven, Leuven, Belgium
| | - Veerle Compernolle
- Blood Service, Belgian Red Cross, Mechelen, Belgium.,Faculty of Medicine and Health Sciences, University of Ghent, Ghent, Belgium
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Garuti F, Neri A, Avanzato F, Gramenzi A, Rampoldi D, Rucci P, Farinati F, Giannini EG, Piscaglia F, Rapaccini GL, Di Marco M, Caturelli E, Zoli M, Sacco R, Cabibbo G, Marra F, Mega A, Morisco F, Gasbarrini A, Svegliati-Baroni G, Foschi FG, Missale G, Masotto A, Nardone G, Raimondo G, Azzaroli F, Vidili G, Brunetto MR, Trevisani F. The changing scenario of hepatocellular carcinoma in Italy: an update. Liver Int 2021; 41:585-597. [PMID: 33219585 DOI: 10.1111/liv.14735] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/26/2020] [Accepted: 11/13/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS Epidemiology of hepatocellular carcinoma (HCC) is changing in most areas of the world. This study aimed at updating the changing scenario of aetiology, clinical presentation, management and prognosis of HCC in Italy during the last 15 years. METHODS Retrospective analysis of the Italian Liver Cancer (ITA.LI.CA) database included 6034 HCC patients managed in 23 centres from 2004 to 2018. Patients were divided into three groups according to the date of cancer diagnosis (2004-2008, 2009-2013 and 2014-2018). RESULTS The main results were: (i) a progressive patient ageing; (ii) a progressive increase of non-viral cases and, particularly, of 'metabolic' and 'metabolic + alcohol' HCCs; (iii) a slightly decline of cases diagnosed under surveillance, but with an incremental use of the semiannual schedule; (iv) a favourable cancer stage migration; (v) an increased use of radiofrequency ablation to the detriment of percutaneous ethanol injection; (vi) improved outcomes of ablative and transarterial treatments; (vii) an improved overall survival (adjusted for the lead time in surveyed patients) in the last calendar period, particularly in viral patients; (viii) a large gap between the number of potential candidates (according to oncologic criteria and age) to liver transplant and that of transplanted patients. CONCLUSIONS During the last 15 years several aspects of HCC scenario have changed, as well as its management. The improvement in patient survival observed in the last period was likely because of a larger use of thermal ablation with respect to the less effective alcohol injection and to an improved management of intermediate stage patients.
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Affiliation(s)
- Francesca Garuti
- Semeiotics Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Andrea Neri
- Semeiotics Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Francesca Avanzato
- Semeiotics Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Annagiulia Gramenzi
- Semeiotics Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Davide Rampoldi
- Semeiotics Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Paola Rucci
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Fabio Farinati
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Edoardo G Giannini
- Department of Internal Medicine, Gastroenterology Unit, University of Genova, IRCCS Policlinico San Martino, Genova, Italy
| | - Fabio Piscaglia
- Internal Medicine-Piscaglia Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | | | | | - Marco Zoli
- Internal Medicine-Zoli Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Rodolfo Sacco
- Gastroenterology and Digestive Endoscopy Unit, Foggia University Hospital, Foggia, Italy
| | - Giuseppe Cabibbo
- Department of Health Promotion, Mother & Child Care, Internal Medicine & Medical Specialties, PROMISE, Gastroenterology & Hepatology Unit, University of Palermo, Palermo, Italy
| | - Fabio Marra
- Department of Experimental and Clinical Medicine, Internal Medicine and Hepatology Unit, University of Firenze, Firenze, Italy
| | - Andrea Mega
- Gastroenterology Unit, Bolzano Regional Hospital, Bolzano, Italy
| | - Filomena Morisco
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University of Napoli "Federico II", Napoli, Italy
| | - Antonio Gasbarrini
- Internal Medicine and Gastroenterology Unit, Policlinico Gemelli, Università Cattolica del Sacro Cuore, Roma, Italy
| | | | - Francesco G Foschi
- Department of Internal Medicine, Ospedale per gli Infermi of Faenza, Faenza, Italy
| | - Gabriele Missale
- Infectious Diseases and Hepatology Unit, Azienda Ospedaliero-Universitaria of Parma, Parma, Italy
| | - Alberto Masotto
- Gastroenterology Unit, Ospedale Sacro Cuore Don Calabria, Negrar, Italy
| | - Gerardo Nardone
- Department of Clinical Medicine and Surgery, Hepato-Gastroenterology Unit, University of Napoli "Federico II", Napoli, Italy
| | - Giovanni Raimondo
- Department of Clinical and Experimental Medicine, Clinical and Molecular Hepatology Unit, University of Messina, Messina, Italy
| | - Francesco Azzaroli
- Gastroenterology Unit, Department of Surgical and Medical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Gianpaolo Vidili
- Department of Medical, Surgical and Experimental Sciences, Clinica Medica Unit, University of Sassari, Azienda Ospedaliero-Universitaria of Sassari, Sassari, Italy
| | - Maurizia R Brunetto
- Hepatology and Liver Physiopathology Laboratory and Internal Medicine, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Franco Trevisani
- Semeiotics Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
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Papadopoli R, De Sarro C, Torti C, Pileggi C, Pavia M. Is There Any Opportunity to Provide an HBV Vaccine Booster Dose Before Anti-Hbs Titer Vanishes? Vaccines (Basel) 2020; 8:E227. [PMID: 32429396 PMCID: PMC7349749 DOI: 10.3390/vaccines8020227] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 12/14/2022] Open
Abstract
Whether the primary Hepatitis B vaccination confers lifelong protection is debated. The aim of the study was to assess the effectiveness of booster doses in mounting a protective HBV immune response in subjects vaccinated 18-20 years earlier. The study population consisted of vaccinated students attending medical and healthcare professions schools. A booster dose was offered to subjects with a <10 mIU/mL anti-HBs titer. The post-booster anti-HBs titer was evaluated after four weeks. The subjects with a <10 mIU/mL post-booster anti-HBs titer, received a second and third dose of the vaccine and after one month they were retested. A <10 mIU/mL anti-HBs titer was found in 35.1% of the participants and 92.2% of subjects that were boosted had a ≥10 mIU/mL post-booster anti-HBs titer, whereas 7.8% did not mount an anamnestic response. A low post-booster response (10-100 mIU/mL anti-HBs) was significantly more likely in subjects with a <2.00 mIU/mL pre-booster titer compared to those with a 2.00-9.99 mIU/mL pre-booster titer. The anamnestic response was significantly related to the baseline anti-HBs levels. A booster dose of the HBV vaccine may be insufficient to induce an immunological response in subjects with undetectable anti-HBs titers. A booster dose might be implemented when an anamnestic response is still present.
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Affiliation(s)
- Rosa Papadopoli
- Department of Health Sciences, University of Catanzaro “Magna Græcia”, Campus Universitario “Salvatore Venuta”, Viale Europa, 88100 Catanzaro, Italy; (R.P.); (C.D.S.); (M.P.)
| | - Caterina De Sarro
- Department of Health Sciences, University of Catanzaro “Magna Græcia”, Campus Universitario “Salvatore Venuta”, Viale Europa, 88100 Catanzaro, Italy; (R.P.); (C.D.S.); (M.P.)
| | - Carlo Torti
- Department of Medical and Surgical Sciences, University of Catanzaro “Magna Græcia”, Campus Universitario “Salvatore Venuta”, Viale Europa, 88100 Catanzaro, Italy;
| | - Claudia Pileggi
- Department of Health Sciences, University of Catanzaro “Magna Græcia”, Campus Universitario “Salvatore Venuta”, Viale Europa, 88100 Catanzaro, Italy; (R.P.); (C.D.S.); (M.P.)
| | - Maria Pavia
- Department of Health Sciences, University of Catanzaro “Magna Græcia”, Campus Universitario “Salvatore Venuta”, Viale Europa, 88100 Catanzaro, Italy; (R.P.); (C.D.S.); (M.P.)
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via L. Armanni, 5, 80138 Naples, Italy
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Rajamoorthy Y, Taib NM, Mudatsir M, Harapan H, Wagner AL, Munusamy S, Rahim KA, Radam A. Risk behaviours related to hepatitis B virus infection among adults in Malaysia: A cross-sectional household survey. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2020. [DOI: 10.1016/j.cegh.2019.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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9
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Wang LY, Chen CF, Wu TW, Lai SK, Chu CC, Lin HH. Response to hepatitis B vaccination is co-determined by HLA-DPA1 and -DPB1. Vaccine 2019; 37:6435-6440. [PMID: 31515149 DOI: 10.1016/j.vaccine.2019.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 07/30/2019] [Accepted: 09/02/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND AIMS No report explored the combined effects of HLA-DPA1 and -DPB1 with long-term response to hepatitis B (HB) vaccination (HBVac). The specific aims of the study were to assess the combined effects and relative contributions of DPA1 and DPB1 genes. METHODS The cases were 152 adolescents who had undetectable (<1.0 mIU/mL) post-booster anti-HBs titers and the controls were adolescents who had residual anti-HBs ≥ 10 mIU/mL at aged 16 years (n = 207) or had detectable (≥1.0 mIU/mL) anti-HBs titers after booster HBVac (n = 481). HLA-DPA1 and -DPB1 genotypes were determined by sequence-based typing. RESULTS HLA-DPA1*01:03:01 was correlated with lower ORs of undetectable anti-HBs titers, while -DPA1*02:02:02 and -DPB1*05:01:01 were correlated with higher ORs. The ORs for HLA-DPA1*01:03:01-DPB1*05:01:01 and DPA1*02:02:02-DPB1*protective combinatory types were significantly less than 1.0. As compared with subjects who had no protective allele, the adjusted ORs (95% CI) were 0.545 (0.328-0.906), 0.350 (0.174-0.702), and 0.122 (0.058-0.257), for subjects who had protective alleles on DPA1only, DPB1 only, and both genes, respectively. Analyses of amino acid polymorphisms showed that subjects who carried Arg81-Pro158-Val191-Pro259α + Met234β and Gln62-Arg82α + Met234β combinations had 4.3-to-4.6 folds of risks. CONCLUSION Both DPA1 and DPB1 genes contribute to the persistence of immunological response to primary infantile HBVac. The effects of HLA-DP risk alleles were dominated by the protective alleles and there were significant gene-gene interactions. Our findings provide evidences for the design of more potent HB vaccine.
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Affiliation(s)
- Li-Yu Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan.
| | - Chuen-Fei Chen
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Tzu-Wei Wu
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Sheng-Kai Lai
- Medical Research Department, Mackay Memorial Hospital, New Taipei City, Taiwan; Institute of Molecular Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chen-Chung Chu
- Medical Research Department, Mackay Memorial Hospital, New Taipei City, Taiwan.
| | - Hans Hsienhong Lin
- Department of Gastroenterology, Buddhist Tzu Chi General Hospital Taipei Branch, New Taipei City, Taiwan
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Gomes C, Wong RJ, Gish RG. Global Perspective on Hepatitis B Virus Infections in the Era of Effective Vaccines. Clin Liver Dis 2019; 23:383-399. [PMID: 31266615 DOI: 10.1016/j.cld.2019.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Hepatitis B virus (HBV) infection is a global health burden. The chronicity of this infection leads to complication such as cirrhosis and hepatocellular carcinoma, making it a leading cause of morbidity and mortality worldwide. Chronic infection commonly develops among those who acquire infection during childhood, hence the importance of effective implementation of HBV vaccination policies designed to eradicate chronic HBV. This article provides updated estimates of worldwide HBV disease prevalence and discusses how implementation of vaccination policies has affected HBV epidemiology.
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Affiliation(s)
- Chantal Gomes
- Department of Medicine, Division of Gastroenterology and Hepatology, Endoscopy Unit, Alameda Health System, Highland Hospital, Highland Hospital Campus, Highland Care Pavilion 5th Floor, 1411 East 31st Street, Oakland, CA 94602, USA
| | - Robert J Wong
- Department of Medicine, Division of Gastroenterology and Hepatology, Endoscopy Unit, Alameda Health System, Highland Hospital, Highland Hospital Campus, Highland Care Pavilion 5th Floor, 1411 East 31st Street, Oakland, CA 94602, USA.
| | - Robert G Gish
- Division of Gastroenterology and Hepatology, Stanford Health Care, 300 Pasteur Drive, Palo Alto, CA 94304, USA
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11
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Bianchi FP, Gallone MS, Gallone MF, Larocca AMV, Vimercati L, Quarto M, Tafuri S. HBV seroprevalence after 25 years of universal mass vaccination and management of non-responders to the anti-Hepatitis B vaccine: An Italian study among medical students. J Viral Hepat 2019; 26:136-144. [PMID: 30199579 DOI: 10.1111/jvh.13001] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/09/2018] [Accepted: 08/13/2018] [Indexed: 12/17/2022]
Abstract
According to international guidelines, healthcare workers and medical students immunized against HBV are periodically tested for anti-HBs IgG. Subjects who show an anti-HBs titre <10 mUI/mL must receive additional vaccine doses to induce a measurable antibody response. This study aimed to evaluate the long-time immunogenicity of anti-hepatitis B vaccination in a sample of medical students and residents of the University of Bari who attended the Hygiene Department for biological risk assessment (April 2014-June 2017). The strategy for the management of nonresponder subjects was evaluated. A total of 3676 students and residents were invited for testing according to a standardized protocol. Anti-HBs IgG was tested for in 3140 (85.4%) subjects: 1174/3140 (37.7%) subjects were negative. 14.6% (128/808) of subjects who received the vaccine during their 12th year of life and 45.8% (1056/2305) of subjects immunized during the first year of life (P < 0.0001) were negative. 1005/1174 (85.6%) seronegative subjects received a booster dose, and 903/1005 (89.9%) were tested for anti-HBs 1 month after the booster dose: 82/903 (9.1%) subjects were still negative. Of these, 56/82 (68.3%) received 2 additional doses of vaccine and 52/56 (92.9%) were tested 1 month after the third dose: 50/52 subjects (96.2%) developed a positive titre. In conclusion, several medical students, immunized at birth or at young age against HBV, did not develop protective titres against the virus. Our management strategy (booster retest; for negative subjects, 2 doses and retest) seems consistent with the purpose of evidencing immunological memory.
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Affiliation(s)
- Francesco P Bianchi
- Department of Biomedical Science and Human Oncology, "Aldo Moro" University of Bari, Bari, Italy
| | - Maria S Gallone
- Department of Biomedical Science and Human Oncology, "Aldo Moro" University of Bari, Bari, Italy
| | - Maria F Gallone
- Department of Biomedical Science and Human Oncology, "Aldo Moro" University of Bari, Bari, Italy
| | | | - Luigi Vimercati
- Department of Interdisciplinary Medicine, "Aldo Moro" University of Bari, Bari, Italy
| | - Michele Quarto
- Department of Biomedical Science and Human Oncology, "Aldo Moro" University of Bari, Bari, Italy
| | - Silvio Tafuri
- Department of Biomedical Science and Human Oncology, "Aldo Moro" University of Bari, Bari, Italy
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12
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Magalhães RDLB, Teles SA, Reis RK, Galvão MTG, Gir E. Low completion rate of hepatitis B vaccination in female sex workers. Rev Bras Enferm 2018; 70:489-494. [PMID: 28562795 DOI: 10.1590/0034-7167-2016-0567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 11/04/2016] [Indexed: 11/21/2022] Open
Abstract
Objective: to assess predictive factors for noncompletion of the hepatitis B vaccination schedule in female sex workers in the city of Teresina, Northeastern Brazil. Method: 402 women were interviewed and, for those who did not wish to visit specialized sites, or did not know their hepatitis B vaccination status, the vaccine was offered at their workplaces. Bi- and multivariate analyses were performed to identify potential predictors for noncompletion of the vaccination schedule. Results: of the 284 women eligible for vaccination, 258 (90.8%) received the second dose, 157/258 (60.8%) and 68/258 (26.3%) received the second and third doses, respectively. Working at clubs and consuming illicit drugs were predictors for noncompletion of the vaccination schedule. Conclusion: the high acceptability of the vaccine's first dose, associated with low completion rates of the vaccination schedule in sex workers, shows the need for more persuasive strategies that go beyond offering the vaccine at their workplaces. Objetivo: avaliar fatores preditores de não completude do esquema vacinal contra hepatite B em mulheres que se prostituem em Teresina, Nordeste do Brasil. Método: Um total de 402 mulheres foi entrevistado e, para as que se negaram a irem a lugares especializados, ou desconheciam sua situação vacinal contra hepatite B, a vacina foi oferecida no local do trabalho. Análises bi e multivariadas foram realizadas para identificar potenciais preditores de não completude do esquema vacinal. Resultados: Das 284 mulheres elegíveis para vacinação, 258 (90,8%) receberam a primeira dose, 157/258 (60,8%) e 68/258 (26,3%) receberam a segunda e terceira doses. Trabalhar em boates e consumir drogas ilícitas foram preditores de não completude do esquema vacinal (p<0,05). Conclusão: A elevada aceitabilidade da primeira dose da vacina, associada à baixa completude do esquema vacinal em profissionais do sexo, evidencia a necessidade de estratégia mais persuasiva que vá além da oferta da vacina no local de trabalho.
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Affiliation(s)
| | - Sheila Araújo Teles
- Universidade Federal de Goiás, College of Nursing and Nutrition, Nursing Department. Goiânia, Goiás, Brazil
| | - Renata Karina Reis
- Universidade de São Paulo, Ribeirão Preto College of Nursing. Ribeirão Preto, São Paulo, Brazil
| | | | - Elucir Gir
- Universidade de São Paulo, Ribeirão Preto College of Nursing. Ribeirão Preto, São Paulo, Brazil
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Qu C, Wang Y, Fan C. Response to Letter to the Editor re ‘Be cautious for exceptional results in evaluating the effect of adolescent booster of hepatitis B vaccine’. Int J Infect Dis 2018; 66:153-156. [PMID: 29158135 DOI: 10.1016/j.ijid.2017.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 12/19/2022] Open
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14
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Lee M, Zhu L, Wang MQ, Wei Z, Tan Y, Nguyen MT, Ogunwobi OO, Ma GX. Psychosocial Predictors of HBV Screening Behavior among Vietnamese Americans. Am J Health Behav 2017; 41:561-570. [PMID: 28760178 PMCID: PMC5633084 DOI: 10.5993/ajhb.41.5.5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE We evaluated the influence of psychosocial factors on HBV screening. METHODS Sample consisted of 1716 Vietnamese participants in our previous HBV intervention trial, recruited from 36 community-based organizations in Pennsylvania, New Jersey, and New York City between 2009 and 2014. Using the Health Belief Model and Social Cognitive Theory, we measured self-efficacy, knowledge, perceived barriers, perceived benefits, perceived severity, and risk susceptibility. Analysis of covariance was used to compare pre- and post-intervention changes of psychosocial variables. Structural equation modeling was used to explore the direct and indirect effects of the psychosocial variables on HBV screening. RESULTS Knowledge, self-efficacy, perceived benefits, and perceived barriers were directly associated with HBV screening; knowledge had the strongest effect. Perceived severity and risk susceptibility had indirect association with HBV screening through other variables. Indirect paths among the 6 psychosocial variables were also identified. CONCLUSION To promote HBV screening among Vietnamese Americans, intervention efforts should focus on increasing knowledge, self-efficacy, and perceived benefits, decreasing perceived barriers, and accounting for the dynamic cognitive processing.
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Affiliation(s)
- Minsun Lee
- Postdoctoral Associate, Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Lin Zhu
- Postdoctoral Associate, Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Min Qi Wang
- Professor, Department of Behavioral and Community Health, School of Public Health, University of Maryland, College Park, MD
| | - Zhengyu Wei
- Research Associate, Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | | | - Minhhuyen T Nguyen
- Director, Section of Clinical Gastroenterology, Department of Medicine, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Olorunseun O Ogunwobi
- Associate Professor, Department of Biological Sciences, Hunter College of the City University of New York, New York, NY
| | - Grace X Ma
- Associate Dean for Health Disparities, Director, Center for Asian Health, Laura H. Carnell Professor and Professor in Clinical Sciences, Lewis Katz School of Medicine, Temple University Philadelphia, PA;,
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15
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Ganczak M, Korzen M, Jurewicz A, Szych Z. A cross-sectional sero-survey on preoperative HBV vaccination policy in Poland. BMC Infect Dis 2017; 17:515. [PMID: 28743234 PMCID: PMC5526288 DOI: 10.1186/s12879-017-2607-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 07/18/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A two-dose preoperative vaccination schedule against HBV has been the widely accepted policy in Poland. However, its effectiveness has not yet been assessed. OBJECTIVE To evaluate a two-dose preoperative HBV vaccination policy by an assessment of the proportion of patients who don't present a protective level of anti-HBs (<10.0 mIU/ml). METHODS Consecutive patients from surgical/gynecologic wards of 12 randomly selected hospitals in West Pomerania, Poland, hospitalized between 2010 and 2013, vaccinated against HBV with a two-dose regimen, were asked to complete an anonymous questionnaire. Serum samples were assayed for anti-HBs with the use of third-generation testing methods. To compare sensitivity versus specificity across a range of values for the ability to predict a dichotomous outcome (a protection against HBV infection) a Receiver operating characteristic (ROC) curve was determined. RESULTS There were 193 patients, 58.5% women, median age 52 years. Almost a half (46.0%) of the patients were operated on within 0-60 days of taking the second vaccine dose, 16.2% - 61-180 days after, 37.8% >180 days after. Anti-HBs titer was below a protective level in 49.2% of participants (0.0 mIU/ml in 17.8%, 0.1-9.9 mIU/ml in 31.4%); none of them were aware of this fact. Age ≤ 52 years (OR = 1.89) and having surgery more than 37.5 days after HBV vaccination (OR = 2.70) were associated with greater odds of being protected against HBV infection through vaccination. For the time frame between the second dose implementation and surgery 23 days, a sensitivity of 84% and specificity of 22% for obtaining protection against HBV infection was found, for the time frame >37.5 days - sensitivity remained high (80%), while specificity increased (41%); there was an apparent peek on the ROC curve between 38 and 60 day. In the group vaccinated 0-37.5 days before surgery, less patients had the protective level of anti-HBs titer than in vaccinated 38-60 days before surgery (32.3% vs 60.0%; p = 0.03). CONCLUSIONS The success rate in achieving adequate immune protection with two dose HBV vaccination schedule in preoperatively vaccinated patients is relatively low, especially among those vaccinated less than five weeks prior to surgery. In more than a third of cases the standard three-dose regimen could have been implemented, as participants had time to complete a third dose. Current recommendations regarding a preoperative policy with a 2-dose vaccination schedule in Poland should be revised; the best time to perform surgery after the implementation of the second dose of vaccine in the context of patient protection against HBV infection would be between 38 and 60 days.
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Affiliation(s)
- Maria Ganczak
- Department of Epidemiology and Management, Pomeranian Medical University, Zolnierska 48, 71-210, Szczecin, Poland.
| | - Marcin Korzen
- Department of Methods of Artificial Intelligence and Applied Mathematics, West Pomeranian University of Technology, Zolnierska 49, 71-210, Szczecin, Poland
| | - Alina Jurewicz
- Department of Orthopedic and Trauma, Pomeranian Medical University, Unii Lubelskiej 1, 71-210, Szczecin, Poland
| | - Zbigniew Szych
- Department of Computer Science and Education Quality Research, Pomeranian Medical University, Zolnierska 53, 71-210, Szczecin, Poland
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16
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Ma GX, Fang CY, Seals B, Feng Z, Tan Y, Siu P, Yeh MC, Golub SA, Nguyen MT, Tran T, Wang M. A Community-Based Randomized Trial of Hepatitis B Screening Among High-Risk Vietnamese Americans. Am J Public Health 2017; 107:433-440. [PMID: 28103075 PMCID: PMC5296686 DOI: 10.2105/ajph.2016.303600] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2016] [Indexed: 12/29/2022]
Abstract
OBJECTIVES To evaluate the effectiveness of a community-based liver cancer prevention program on hepatitis B virus (HBV) screening among low-income, underserved Vietnamese Americans at high risk. METHODS We conducted a cluster randomized trial involving 36 Vietnamese community-based organizations and 2337 participants in Pennsylvania, New Jersey, and New York City between 2009 and 2014. We randomly assigned 18 community-based organizations to a community-based multilevel HBV screening intervention (n = 1131). We randomly assigned the remaining 18 community-based organizations to a general cancer education program (n = 1206), which included information about HBV-related liver cancer prevention. We assessed HBV screening rates at 6-month follow-up. RESULTS Intervention participants were significantly more likely to have undergone HBV screening (88.1%) than were control group participants (4.6%). In a Cochran-Mantel-Haenszel analysis, the intervention effect on screening outcomes remained statistically significant after adjustment for demographic and health care access variables, including income, having health insurance, having a regular health provider, and English proficiency. CONCLUSIONS A community-based, culturally appropriate, multilevel HBV screening intervention effectively increases screening rates in a high-risk, hard-to-reach Vietnamese American population.
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Affiliation(s)
- Grace X Ma
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Carolyn Y Fang
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Brenda Seals
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Ziding Feng
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Yin Tan
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Philip Siu
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Ming Chin Yeh
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Sarit A Golub
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Minhhuyen T Nguyen
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Tam Tran
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
| | - Minqi Wang
- Grace X. Ma, Brenda Seals, and Yin Tan are with the Center for Asian Health, Lewis Katz School of Medicine, Temple University, Philadelphia, PA. Carolyn Y. Fang and Minhhuyen T. Nguyen are with the Fox Chase Cancer Center, Temple University Medical System, Philadelphia. Ziding Feng is with the Department of Biostatistics, Anderson Cancer Center, University of Texas, Houston. Philip Siu is with Chinatown Medical Services, Philadelphia. Ming Chin Yeh is with the Nutrition Program, Hunter College, City University of New York, New York, NY. Sarit A. Golub is with the Department of Psychology, Hunter College, City University of New York. Tam Tran is with the Viet Community, Asian American Buddhist Association, Philadelphia. Minqi Wang is with the School of Public Health, University of Maryland, College Park
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17
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Bucci L, Garuti F, Lenzi B, Pecorelli A, Farinati F, Giannini EG, Granito A, Ciccarese F, Rapaccini GL, Di Marco M, Caturelli E, Zoli M, Borzio F, Sacco R, Cammà C, Virdone R, Marra F, Felder M, Morisco F, Benvegnù L, Gasbarrini A, Svegliati-Baroni G, Foschi FG, Missale G, Masotto A, Nardone G, Colecchia A, Bernardi M, Trevisani F. The evolutionary scenario of hepatocellular carcinoma in Italy: an update. Liver Int 2017; 37:259-270. [PMID: 27427866 DOI: 10.1111/liv.13204] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/12/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Epidemiology of hepatocellular carcinoma is changing worldwide. This study aimed at evaluating the changing scenario of aetiology, presentation, management and prognosis of hepatocellular carcinoma in Italy during the last 15 years. METHODS Retrospective analysis of the ITA.LI.CA (Italian Liver Cancer) database including 5192 hepatocellular carcinoma patients managed in 24 centres from 2000 to 2014. Patients were divided into three groups according to the date of cancer diagnosis (2000-2004, 2005-2009 and 2010-2014). RESULTS The main results were as follows: (i) progressive patient aging; (ii) progressive expansion of non-viral cases and, namely, of "metabolic" hepatocellular carcinomas; (iii) increasing proportion of hepatocellular carcinoma diagnosed during a correct (semi-annual) surveillance programme; (iv) favourable cancer stage migration; (v) increased use of radiofrequency ablation to the detriment of percutaneous ethanol injection; (vi) improved outcomes of ablative and transarterial treatments; (vii) improved overall survival (adjusted for the lead time in surveyed patients), particularly after 2009, of both viral and non-viral patients presenting with an early- or intermediate-stage hepatocellular carcinoma. CONCLUSIONS During the last 15 years several aetiological and clinical features of hepatocellular carcinoma patients have changed, as their management. The observed improvement of overall survival was owing both to the wider use of semi-annual surveillance, expanding the proportion of tumours that qualified for curative treatments, and to the improved outcome of loco-regional treatments.
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Affiliation(s)
- Laura Bucci
- Unità di Semeiotica Medica, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Francesca Garuti
- Unità di Semeiotica Medica, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Barbara Lenzi
- Unità di Semeiotica Medica, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Anna Pecorelli
- Unità di Medicina Interna, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Fabio Farinati
- Unità di Gastroenterologia, Dipartimento di Scienze Chirurgiche e Gastroenterologiche, Università di Padova, Padova, Italy
| | - Edoardo G Giannini
- Unità di Gastroenterologia, Dipartimento di Medicina Interna, IRCCS-Azienda Ospedaliera Universitaria San Martino-IST, Università di Genova, Genova, Italy
| | - Alessandro Granito
- Unità di Medicina Interna, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | | | - Gian Lodovico Rapaccini
- Unità di Medicina Interna e Gastroenterologia, Complesso Integrato Columbus, Università Cattolica di Roma, Rome, Italy
| | - Maria Di Marco
- Divisione di Medicina, Azienda Ospedaliera Bolognini, Seriate, Italy
| | - Eugenio Caturelli
- Unità Operativa di Gastroenterologia, Ospedale Belcolle, Viterbo, Italy
| | - Marco Zoli
- Unità di Medicina Interna, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Franco Borzio
- Unità di Radiologia, Dipartimento di Medicina, Ospedale Fatebenefratelli, Milan, Italy
| | - Rodolfo Sacco
- Unità Operativa Gastroenterologia e Malattie del Ricambio, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Calogero Cammà
- Unità di Gastroenterologia, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Palermo, Italy
| | - Roberto Virdone
- Divisione di Medicina Interna, Ospedale Villa Sofia - V. Cervello, Università di Palermo, Palermo, Italy
| | - Fabio Marra
- Medicina Interna ed Epatologia, Dipartimento di Medicina Sperimentale e Clinica - Università di Firenze, Firenze, Italy
| | - Martina Felder
- Unità di Gastroenterologia, Ospedale Regionale di Bolzano, Bolzano, Italy
| | - Filomena Morisco
- Unità di Gastroenterologia, Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli "Federico II", Naples, Italy
| | - Luisa Benvegnù
- Dipartimento di Medicina Molecolare, Università di Padova, Padua, Italy
| | - Antonio Gasbarrini
- Unità di Medicina Interna e Gastroenterologia, Policlinico Gemelli, Università Cattolica di Roma, Rome, Italy
| | - Gianluca Svegliati-Baroni
- Dipartimento di Gastroenterologia, Gastroenterologia, Politecnico-Università delle Marche, Ancona, Italy
| | | | - Gabriele Missale
- Unità di Malattie Infettive ed Epatologia, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Alberto Masotto
- Unità di Gastroenterologia, Ospedale Sacro Cuore Don Calabria, Negrar, Italy
| | - Gerardo Nardone
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Epato-Gastroenterologia, Università di Napoli "Federico II", Naples, Italy
| | - Antonio Colecchia
- Unità di Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Mauro Bernardi
- Unità di Semeiotica Medica, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
| | - Franco Trevisani
- Unità di Semeiotica Medica, Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum - Università di Bologna, Bologna, Italy
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Wang Y, Chen T, Lu LL, Wang M, Wang D, Yao H, Fan C, Qi J, Zhang Y, Qu C. Adolescent booster with hepatitis B virus vaccines decreases HBV infection in high-risk adults. Vaccine 2017; 35:1064-1070. [PMID: 28069363 DOI: 10.1016/j.vaccine.2016.12.062] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 12/24/2016] [Accepted: 12/28/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Neutralizing antibodies (anti-HBs) after immunization with hepatitis B virus (HBV) vaccines against HBV surface antigen (HBsAg) wane after 10-15years. We analyzed the effect of an adolescent booster given to vaccination-protected children born to mothers with different HBsAg-carrying status against HBV infection in their mature adulthood. METHODS A total of 9793 individuals, who were HBsAg-negative at childhood (baseline) and donated blood samples, both during childhood and adulthood, from the vaccination group in "Qidong Hepatitis B Intervention Study", were enrolled. Among them 7414 received a one-dose, 10μg-recombinant HBV vaccine booster at 10-14years of age. At endpoint (23-28years of age), we determined the HBV serological markers and quantified their serum HBV-DNA in each of the chronic HBV-infected adults. RESULTS Fifty-seven adults were identified as chronic HBV infection, indicated by HBsAg(+)&anti-HBc(+) for more than 6months. The individuals who were born to HBsAg-positive mothers (high-risk adults) had significantly increased risk of developing chronic HBV infections in adulthood compared with those who were born to HBsAg-negative mothers; the adjusted odds ratio (OR) was 12.56, 95%CI:7.14-22.08. The seronegative status of anti-HBs at 10-11years of age significantly increased the risk of HBV infections among the high-risk adults. When HBsAg(-)&anti-HBc(+) children who were born to HBsAg-positive mothers 70% of them remained as the status and 10% of them developed HBsAg(+)&anti-HBc(+). While when they were born to HBsAg-negative mothers 1.05% HBsAg(-)&anti-HBc(+) children developed HBsAg(+)&anti-HBc(+) and 24.74% of them remained as the status in 12-18years. One dose of adolescent booster showed significant protection on high-risk adults from chronic HBV infection; P for trend was 0.015. CONCLUSIONS Maternal HBsAg-positive status was an independent risk factor for vaccination-protected children to develop HBV breakthrough infection in adulthood. Adolescent boosters might be appropriate for high-risk individuals who were born to HBsAg-positive mothers when their serum anti-HBs<10mIU/ml.
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Affiliation(s)
- Yuting Wang
- Department of Immunology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Taoyang Chen
- Qidong Liver Cancer Institute & Qidong People's Hospital, Qidong, Jiangsu Province 226200, China
| | - Ling-Ling Lu
- Qidong Liver Cancer Institute & Qidong People's Hospital, Qidong, Jiangsu Province 226200, China
| | - Minjie Wang
- Department of Clinical Laboratory, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Dongmei Wang
- Department of Immunology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China; State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Hongyu Yao
- Qidong Liver Cancer Institute & Qidong People's Hospital, Qidong, Jiangsu Province 226200, China
| | - Chunsun Fan
- Qidong Liver Cancer Institute & Qidong People's Hospital, Qidong, Jiangsu Province 226200, China
| | - Jun Qi
- Department of Clinical Laboratory, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yawei Zhang
- Qidong Liver Cancer Institute & Qidong People's Hospital, Qidong, Jiangsu Province 226200, China; Department of Surgery, Department of Environmental Health Sciences, Yale School of Public Health, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Chunfeng Qu
- Department of Immunology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China; State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
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Della Corte C, Mosca A, Vania A, Alterio A, Alisi A, Nobili V. Pediatric liver diseases: current challenges and future perspectives. Expert Rev Gastroenterol Hepatol 2016; 10:255-65. [PMID: 26641319 DOI: 10.1586/17474124.2016.1129274] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic liver diseases in children represent a rising problem with significant effects on public health. In fact, several pediatric liver diseases are precursors of adult chronic hepatopathies, cirrhosis and hepatocellular carcinoma. The prevalence of liver diseases in children is unknown. In the USA, every year, 15,000 children are hospitalized for liver diseases, but these disorders continue to be under-recognized or diagnosed late. The main reason is due to the frequent absence of symptoms in the vast majority of liver diseases, especially in the early stages. In the last few decades several advances have been made in understanding the pathogenesis of liver diseases, permitting the discovery of new therapeutic targets to treat liver diseases, thus improving the natural history of these disorders. In this article we discuss the most recent advances in the understanding of the pathogenesis, diagnosis and treatment of the most frequent pediatric liver diseases.
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Affiliation(s)
- Claudia Della Corte
- a Hepato-Metabolic Department , Bambino Gesù Children's Hospital, IRCCS , Rome , Italy
| | - Antonella Mosca
- b Center of Dietetics and Nutrition , Pediatric Clinic, 'La Sapienza' University , Rome , Italy
| | - Andrea Vania
- b Center of Dietetics and Nutrition , Pediatric Clinic, 'La Sapienza' University , Rome , Italy
| | - Arianna Alterio
- a Hepato-Metabolic Department , Bambino Gesù Children's Hospital, IRCCS , Rome , Italy
| | - Anna Alisi
- c Liver Research Unit , Bambino Gesù Children's Hospital, IRCCS , Rome , Italy
| | - Valerio Nobili
- a Hepato-Metabolic Department , Bambino Gesù Children's Hospital, IRCCS , Rome , Italy
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La Fauci V, Riso R, Facciolà A, Ceccio C, Lo Giudice D, Calimeri S, Squeri R. Response to anti-HBV vaccine and 10-year follow-up of antibody levels in healthcare workers. Public Health 2016; 139:198-202. [PMID: 27600791 DOI: 10.1016/j.puhe.2016.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 07/14/2016] [Accepted: 08/08/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Despite improvements in public health and antiviral treatments, vaccination is still the most effective means of prevention of hepatitis B virus (HBV) infection. However, little is known about the duration of protection given by the anti-HBV vaccine. Healthcare workers represent a category at risk not only of contracting infection but also of being a source of contagion to patients. OBJECTIVES To assess individual responses to the anti-HBV vaccine and duration of protection 10 years after its administration in a cohort of healthcare workers employed by the University Hospital 'G. Martino' in Messina, Italy. METHODS One hundred and seventy medical staff who had been vaccinated following an incident carrying risk of HBV infection were included in this study. The group was followed over a 10-year period, and HBV antibody levels were assessed using an automated microparticle enzyme immunoassay. RESULTS Protective antibody levels (≥10 mIU/ml) were found in 65% of subjects who had completed the full vaccine schedule (three doses) and in 35% of subjects who had only received one or two doses of anti-HBV vaccine. Moreover, 10 years after vaccination, HBV antibody levels were inversely related to age at vaccination (P < 0.001). No differences were found between males and females. CONCLUSIONS This study, in line with the literature, shows the importance of completing the full vaccine schedule (three doses). Moreover, in order to have an effective and durable antibody response and avoid the risk of contracting HBV after an injury at work, it is important to recommend anti-HBV vaccination at a young age, ideally during childhood in accordance with the national vaccination policy.
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Affiliation(s)
- V La Fauci
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy.
| | - R Riso
- Postgraduate Medical School in Hygiene and Preventive Medicine, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - A Facciolà
- Postgraduate Medical School in Hygiene and Preventive Medicine, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - C Ceccio
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - D Lo Giudice
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - S Calimeri
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - R Squeri
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
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Pfaender S, von Hahn T, Steinmann J, Ciesek S, Steinmann E. Prevention strategies for blood-borne viruses-in the Era of vaccines, direct acting antivirals and antiretroviral therapy. Rev Med Virol 2016; 26:330-9. [PMID: 27185010 PMCID: PMC5084801 DOI: 10.1002/rmv.1890] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/27/2016] [Accepted: 04/28/2016] [Indexed: 12/21/2022]
Abstract
Blood-borne viruses, such as hepatitis B virus, hepatitis C virus, human immunodeficiency virus, and the facultative blood-borne hepatitis E virus, are considered a major public health problem given that they are accountable for millions of deaths each year. Treatment options, including effective vaccine design, development of antiviral strategies and the implementation of antiretroviral therapy have improved substantially over the last couple of years and contribute to successful treatment and prevention of these infectious diseases. In this review, we summarise the current knowledge and concepts in prevention of transmission of these blood-borne viruses.
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Affiliation(s)
- Stephanie Pfaender
- Institute for Experimental Virology, Twincore, and Hannover Medical School Hannover, Germany, and Helmholtz Centre for Infection Research, Braunschweig, Germany
- Department of Infectious Diseases and Pathobiology, University of Bern, 3012 Bern, Switzerland, Federal Department of Home Affairs, Institute of Virology and Immunology, 3012 Bern and 3147, Mittelhäusern, Switzerland
| | - Thomas von Hahn
- Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover, Germany
- German Center for Infection Research (DZIF) - Hannover-Braunschweig Site
- Institute for Molecular Biology, Medizinische Hochschule Hannover, Hannover, Germany
| | - Joerg Steinmann
- Institute of Medical Microbiology, University Hospital Essen, Essen, Germany
| | - Sandra Ciesek
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Eike Steinmann
- Institute for Experimental Virology, Twincore, and Hannover Medical School Hannover, Germany, and Helmholtz Centre for Infection Research, Braunschweig, Germany.
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Ganczak M, Dmytrzyk-Daniłów G, Korzeń M, Drozd-Dąbrowska M, Szych Z. Prevalence of HBV Infection and Knowledge of Hepatitis B Among Patients Attending Primary Care Clinics in Poland. J Community Health 2016; 41:635-44. [PMID: 26699149 PMCID: PMC4842211 DOI: 10.1007/s10900-015-0139-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
It is well known that community awareness of hepatitis B (HB) can lead to vaccination and testing. The study objectives were to assess the prevalence of HBV infection and knowledge of HB among adult patients attending randomly selected primary care clinics. A cross-sectional sero-survey was conducted in March 2013 in the Zgorzelec region, Poland, with the use of an investigator-developed questionnaire containing 22 questions regarding HB knowledge. Serum samples were assayed for anti-HBc total and anti-HBs with enzyme immunoassay. The prevalence of anti-HBc total among 410 participants (median age 56 years) was 10.3 % (95 % CI 7.6-13.8 %), nobody was aware of an infection. The main sources of HB knowledge were the media and medical staff. The mean knowledge score was 14.8 ± 4.9; 76.7 % of the respondents had scores >50 %. Particular gaps were detected relating to knowledge of unprotected sexual intercourse and MTCT; 45.6 % patients were not aware of the potential asymptomatic course of HBV infection, 41.2 % about chronic HB treatment. A patient's low educational level was negatively associated with a high knowledge level; the willingness for further education on HB and HBV vaccination in the past were independently associated with good knowledge. In conclusion, the HBV infection remains a public health threat in Poland, since the prevalence of infection markers in asymptomatic adult patients was high. Knowledge gaps call for awareness campaigns which may increase testing and diagnosis, audiences representing lower education level should be targeted first. Knowledge on HB might serve as an effective tool in decision making regarding vaccination.
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Affiliation(s)
- Maria Ganczak
- Department of Public Health, Pomeranian Medical University, Żołnierska 48, 71-210, Szczecin, Poland.
| | | | - Marcin Korzeń
- Faculty of Computer Science and Information Technology, West Pomeranian University of Technology, Żołnierska 49, 71-210, Szczecin, Poland
| | | | - Zbigniew Szych
- Department of Computer Science and Education Quality Research, Pomeranian Medical University, Żołnierska 54, 71-210, Szczecin, Poland
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Abstract
Cancer is a common and potentially deadly disease. Some of the cancers may be difficult to treat by conventional means such as surgery, radiation, and chemotherapy, but may be controlled by the stimulation of the immune response of the body with the help of cancer vaccines. The use of vaccines for preventing infections by oncogenic viruses such as hepatitis B virus and human papilloma virus has been extremely successful in reducing the incidence of cancers resulting from these infections. The use of vaccines for treating cancers that are not due to viral infections and that are already established is currently the object of numerous clinical trials. Several types of cancer vaccines are being tried. These include antigen vaccines, tumor cell vaccines, dendritic vaccines, deoxyribonucleic acid vaccines, and viral vector vaccines. The development of these therapeutic vaccines is proving difficult with only 1 recent success. However, there is significant enthusiasm and optimism regarding the development of effective therapeutic vaccines stemming from the fact that our understanding regarding the cancer immunology is considerably enhanced in recent years. This expanded knowledge regarding the mechanisms that cancers use to escape the immune system is likely to open new avenues in modulating the immune response to cancer, thus enhancing the effectiveness of therapeutic cancer vaccines.
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La Torre G, Mannocci A, Saulle R, Colamesta V, Meggiolaro A, Mipatrini D, Sinopoli A. Economic evaluation of HBV vaccination: A systematic review of recent publications (2000-2013). Hum Vaccin Immunother 2016; 12:2299-311. [PMID: 27105443 DOI: 10.1080/21645515.2016.1166328] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
AIM To conduct a systematic review of the economic evaluations (EE) of HBV vaccination, taking also into account the studies published in the new millennium. METHODS An extensive scientific literature review was conducted using two electronic medical journal databases: Scopus and PubMed engines for published studies on EE of HBV vaccination. RESULTS 22 articles were reviewed, 9, 5 and 8 cost-effectiveness, cost-benefit and cost-utility analysis, respectively. Studies were mainly concerning EE of universal vaccination (UV), mostly with regards to low or low-medium income countries. For high income countries, EE were focused on the possible implementation of HBV vaccination in particular settings, such as diabetic, renal and other chronic conditions care, as well as infectious diseasesUV has usually a very good cost-effectiveness ratio (80%), ranging from cost-saving (China) or few Euro per LY/QALY gained (in Thailand, and Vietnam) to 630.00$/QALY in USA (Asian and Pacific Islands) Moreover, EE of HBV vaccination are favorable in the infectious diseases field as well as for chronic conditions. In relation to diabetes the studies gave controversial results. CONCLUSION This systematic review highlighted the importance of introducing HBV vaccination not only for infant UV program but also for other settings in which patients are people affected by communicable and non-communicable diseases.
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Affiliation(s)
- Giuseppe La Torre
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Alice Mannocci
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Rosella Saulle
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Vittoria Colamesta
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Angela Meggiolaro
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Daniele Mipatrini
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Alessandra Sinopoli
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
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Pedersini R, Marano C, De Moerlooze L, Chen L, Vietri J. HAV & HBV vaccination among travellers participating in the National Health and Wellness Survey in five European countries. Travel Med Infect Dis 2016; 14:221-32. [PMID: 27000975 DOI: 10.1016/j.tmaid.2016.03.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 03/09/2016] [Accepted: 03/10/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND A main cause of hepatitis A and B infections in European countries is travel to endemic countries. Most research on hepatitis vaccination among travellers from Europe has been conducted in airports or travel clinics, samples which potentially overrepresented frequent travellers. METHODS 2102 respondents across France, Germany, Italy, Spain, and UK completed an internet-based questionnaire. Vaccination status, travel to endemic countries, and other characteristics were compared across frequent, occasional, and non-travellers. Logistic regressions tested association between vaccination and travel adjusting for potential confounders. RESULTS Most respondents were occasional travellers (61%) and 24% were frequent travellers. Frequent travellers had 2.3-2.4 times the odds of being vaccinated relative to non-travellers, and odds of vaccination were 2.5-3.1 times higher among travellers to endemic areas relative to others (all p < .05). Frequent travellers were more aware of their vaccination status (HAV: 80% vs. 72%; HBV: 82% vs. 74%), though many who were vaccinated could not identify the number of injections to complete the series (47% vs. 29%) (all p < .05). CONCLUSION Travel frequency and destination endemicity are associated with increased hepatitis A and B vaccination. The number of unvaccinated travellers and the lack of recall for the dosing schedule suggest the need to improve travellers' awareness and adherence to recommendations.
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Affiliation(s)
| | - Cinzia Marano
- GSK Vaccines, 20 Avenue Fleming, 1300, Wavre, Belgium
| | | | - Lin Chen
- Mount Auburn Hospital and Harvard Medical School, Cambridge, MA, USA
| | - Jeffrey Vietri
- Kantar Health, 700 Dresher Road, Horsham, 19044, PA, USA.
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Joukar F, Mansour-Ghanaei F, Naghipour MR, Asgharnezhad M. Immune Responses to Single-Dose Versus Double-Dose Hepatitis B Vaccines in Healthcare Workers not Responding to the Primary Vaccine Series: A Randomized Clinical Trial. HEPATITIS MONTHLY 2016; 16:e32799. [PMID: 27148385 PMCID: PMC4852093 DOI: 10.5812/hepatmon.32799] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recommendations to immunize healthcare workers (HCWs) against hepatitis B are well known. However, a proportion of individuals do not respond to the primary standard three-dose HB vaccination schedule. OBJECTIVES The current study aimed to evaluate whether a double-dose HB booster vaccine could induce better protective anti-HB titers than a single-dose booster in non-protected HCWs. MATERIALS AND METHODS This was a randomized clinical trial. A total of 91 HCWs not responding to the primary vaccine series in 2014 were enrolled. The participants were randomized into two groups that received a double dose of the HB vaccine containing 40 µg of antigen or a single dose of the HB vaccine containing 20 µg of antigen in three doses (at zero, one and six months after vaccination). Blood samples were collected before vaccinations and 28 days after the third dose to assess the seroconversion rate, according to the anti-HB antibody titer threshold of > 10 mIU/mL. RESULTS The seroconversion rates were 93.2% and 87.2% after the first booster doses of the double-dose and single-dose HB vaccines, respectively (P = 0.64). In the double-dose HB vaccine group, the seroconversion rate was 97.8% compared with 89.6% in the single-dose group following the second vaccine dose (P = 0.83). All of the participants in both groups were seroprotected after the third HB vaccine dose. CONCLUSIONS Both the single- and double-dose HB vaccines were adequately immunogenic, and the double-dose HB vaccine was not significantly more immunogenic than the single-dose vaccine in terms of the seroconversion rates of HCWs who had not responded to the primary vaccine series.
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Affiliation(s)
- Farahnaz Joukar
- Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, IR Iran
| | - Fariborz Mansour-Ghanaei
- Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, IR Iran
- Corresponding Author: Fariborz Mansour-Ghanaei, Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, IR Iran. E-mail: ;
| | - Mohammad-Reza Naghipour
- Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, IR Iran
| | - Mehrnaz Asgharnezhad
- Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, IR Iran
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Fujiko M, Chalid MT, Turyadi, Ie SI, Maghfira, Syafri, Wahyuni R, Roni M, Patellongi I, Massi MN, Muljono DH. Chronic hepatitis B in pregnant women: is hepatitis B surface antigen quantification useful for viral load prediction? Int J Infect Dis 2015; 41:83-9. [PMID: 26571304 DOI: 10.1016/j.ijid.2015.11.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/20/2015] [Accepted: 11/04/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND New cases of hepatitis B virus (HBV) infection continue to occur worldwide. Most of these are due to mother-to-child transmission (MTCT), with maternal viraemia as the most important contributing factor. The hepatitis B surface antigen (HBsAg) level, which correlates positively with viral load, has been used for treatment monitoring in chronic hepatitis B. This study evaluated the usefulness of quantitative HBsAg for viral load prediction in HBsAg-positive pregnant women. METHODS A total of 943 pregnant women in Makassar, Indonesia, were screened for HBsAg. Sixty-four women were HBsAg-positive and investigated. HBsAg level and hepatitis B e antigen (HBeAg)/hepatitis B e antibody (anti-HBe) status were determined serologically. Viral load was measured by real-time PCR. HBV DNA was sequenced and analysed for identification of genotype and basal core promoter (BCP)/precore (PC) mutations. RESULTS Of 64 subjects, 12 (18.8%) were HBeAg-positive and 52 (81.3%) were HBeAg-negative. HBsAg and HBV DNA levels were significantly higher in the HBeAg-positive group (p<0.001). HBsAg and HBV DNA levels were positively correlated in the HBeAg-positive group (r = 0.659; p=0.02), but not in the HBeAg-negative group (r=0.194; p=0.168). Low HBsAg levels (<3.0 log10 IU/ml) corresponded with HBV DNA levels<6.0 log10 IU/ml (r=0.404; p=0.001), a recognized threshold for MTCT. Genotype C was more prevalent than genotype B, but not associated with HBsAg level, viral load, or HBeAg status. Two-thirds of HBeAg-negative subjects with high HBV DNA levels harboured BCP (A1762T/G1764A) and/or PC (G1896A) variants. CONCLUSIONS HBsAg levels provide a good viral load predictor in HBeAg-positive but not HBeAg-negative pregnant women. The HBeAg-negative group had a frequent occurrence of BCP/PC variants, which may have contributed to the lack of correlation observed. Samples with a low HBsAg level, which is associated with a low risk of MTCT, do not require HBV DNA measurement.
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Affiliation(s)
- Masita Fujiko
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Maisuri T Chalid
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Turyadi
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta Pusat 10430, DKI Jakarta, Indonesia
| | - Susan I Ie
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta Pusat 10430, DKI Jakarta, Indonesia
| | - Maghfira
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Syafri
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Ridha Wahyuni
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Martono Roni
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta Pusat 10430, DKI Jakarta, Indonesia
| | | | - M Nasrum Massi
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - David H Muljono
- Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia; Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta Pusat 10430, DKI Jakarta, Indonesia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.
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28
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Ganczak M, Dmytrzyk-Daniłów G, Korzeń M, Szych Z. A cross-sectional serosurvey on hepatitis B vaccination uptake among adult patients from GP practices in a region of South-West Poland. BMC Public Health 2015; 15:1060. [PMID: 26475167 PMCID: PMC4609044 DOI: 10.1186/s12889-015-2388-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 10/06/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hepatitis B is a significant health burden in Poland with nosocomial transmission being the main source of infection. Therefore, HBV vaccination is widely recommended for those not covered by the national immunisation program. OBJECTIVE To assess the coverage and influencing determinants of HBV vaccination among adult patients attending GP clinics as well as to establish serological status in terms of HBV infection. METHODS Patients who were seen consecutively in March 2013 at four randomly selected GP practices located in Zgorzelec county, in south-western part of Poland, were invited to participate and complete questionnaires on socio-demographic data and other factors related to vaccination. A pilot study was done in one urban GP practice in the city of Gryfino (Gryfino county), the results have been included in the study. Patients' immunisation status was assessed basing on vaccination cards and anti-HBs titer with the use of third-generation testing methods. In addition, serum samples were assayed for anti-HBc total. RESULTS Response rate: 99.3 %. Of 410 participants (66.1 % females, median age 56 years), 55.4 % (95%CI:50.5-60.1 %) were previously vaccinated; in those 11.5 % took 2 doses, 66.1 % - 3 doses,18.1 % - 4 doses. Elective surgery was the main reason (57.7 %) for HBV immunization, 4.8 % - were vaccinated due to recommendations by GPs. The multivariable logistic regression model revealed that living in a city (OR 2.11), and having a surgery in the past (OR 2.73) were each associated with greater odds of being vaccinated. Anti-HBc total prevalence among those unvaccinated was 13.6 % (95%CI:9.3 %-19,5 %), and 7.2 % (95%CI:4.4-11.8 %) among those vaccinated. CONCLUSIONS Low HBV immunization coverage among adult patients from GP clinics and the presence of serological markers of HBV infection among both - those unvaccinated and vaccinated call for comprehensive preventative measures against infection, including greater involvement of family doctors. Although interventions should cover the whole population, inhabitants living in the rural areas should be a group of special interest. Preoperative immunization for HBV seems to be an efficient public health tool to increase the vaccination uptake.
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Affiliation(s)
- Maria Ganczak
- Department of Public Health, Pomeranian Medical University, Zolnierska 48, 71-210, Szczecin, Poland.
| | | | - Marcin Korzeń
- Faculty of Computer Science and Information Technology, West Pomeranian University of Technology, Zolnierska 49, 71-210, Szczecin, Poland.
| | - Zbigniew Szych
- Department of Computer Science and Education Quality Research, Pomeranian Medical University, Zolnierska 53, 71-210, Szczecin, Poland.
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Liang P, Zu J, Yin J, Li H, Gao L, Cui F, Wang F, Liang X, Zhuang G. The independent impact of newborn hepatitis B vaccination on reducing HBV prevalence in China, 1992-2006: A mathematical model analysis. J Theor Biol 2015; 386:115-21. [PMID: 26375372 DOI: 10.1016/j.jtbi.2015.08.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/01/2015] [Accepted: 08/28/2015] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To evaluate the independent impact of newborn hepatitis B vaccination on reducing HBV prevalence in China, from its introduction in 1992 to 2006. METHODS An age- and time-dependent discrete dynamic model was developed to simulate HBV transmission in China under the assumptions of no any change in interventions and only with newborn vaccination introduction, respectively. The initial conditions of the model were determined according to the national serosurvey in 1992. The simulated results were compared with the observed results of the national serosurvey in 2006, and the contribution rate of newborn vaccination on reducing HBV prevalence was calculated overall and by birth cohort. RESULTS The total HBV prevalence would remain stable through the 14-year period if no any change in interventions, but decrease year by year if only with newborn vaccination introduction. Newborn vaccination could account for more than 50% of the reduction of the total HBV prevalence, although the full 3-dose and timely birth dose vaccination coverage rates were low in the early years. The results by birth cohort showed that the higher the two coverage rates, the higher contribution rate on reducing HBV prevalence. For the 2005 birth cohort which had high levels in the two coverage rates, the contribution rate could reach more than 95%. CONCLUSION Newborn hepatitis B vaccination from 1992 to 2006 in China had played the most important role in reducing HBV prevalence. Newborn vaccination with high full 3-dose and timely birth dose coverage rates is the decisive factor in controlling hepatitis B in China.
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Affiliation(s)
- Peifeng Liang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Health Science Center, Xi'an, Shaanxi 710061, China.
| | - Jian Zu
- Department of Applied Mathematics, School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Juan Yin
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Health Science Center, Xi'an, Shaanxi 710061, China.
| | - Hao Li
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Health Science Center, Xi'an, Shaanxi 710061, China.
| | - Longfei Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Health Science Center, Xi'an, Shaanxi 710061, China.
| | - Fuqiang Cui
- Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Fuzhen Wang
- Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Xiaofeng Liang
- Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Guihua Zhuang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Health Science Center, Xi'an, Shaanxi 710061, China.
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Tajiri K, Shimizu Y. Unsolved problems and future perspectives of hepatitis B virus vaccination. World J Gastroenterol 2015; 21:7074-7083. [PMID: 26109794 PMCID: PMC4476869 DOI: 10.3748/wjg.v21.i23.7074] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 03/23/2015] [Accepted: 05/04/2015] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) infection is still a serious worldwide problem, and vaccination is the most effective strategy for primary prevention of the infection. Although universal vaccination may be required for total eradication, several countries, including Japan, have not yet adopted universal vaccination programs. Some individuals are non-responders to HBV vaccine and several mechanisms responsible for their poor response have been proposed. To overcome non-response, third generation vaccines with pre-S proteins have been developed. These vaccines have shown better anti-HBs responses and may also be effective in preventing infection by HBV with S mutant. Improvement of vaccine efficacy by intradermal administration, or co-administration with cytokines or adjuvants, may also be effective in non-responders. The necessity, timing and method of booster vaccination in responders with decreased anti-HBs responses, and effective vaccination against S-mutant HBV, are issues requiring resolution in the global prevention of HBV infection.
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Wu TW, Chen CF, Lai SK, Lin HH, Chu CC, Wang LY. SNP rs7770370 in HLA-DPB1 loci as a major genetic determinant of response to booster hepatitis B vaccination: results of a genome-wide association study. J Gastroenterol Hepatol 2015; 30:891-9. [PMID: 25389088 DOI: 10.1111/jgh.12845] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/04/2014] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIM Hepatitis B (HB) vaccination is highly effective in reducing the risk of hepatitis B virus infection. However, breakthrough and chronic hepatitis B virus infections in vaccinated subjects raised concern about its long-term efficacy. The specific aim of the study was to explore the host genetic determinants of long-term immunological memory against HB vaccination. METHODS We conducted a case-control study nested in a cohort of HB booster recipients who had received primary HB vaccination during infancy but failed to reside an anti-HBs titers ≥ 10 mIU/mL at the age of 15-18 years. We used a genome-wide single nucleotide polymorphism (SNP) array plate to scan autosomal chromosomes and assayed the human leukocyte antigen (HLA)-DPB1 genotype by sequence-based techniques. RESULTS We found that 10 of the 112 candidate SNPs (P-value < 5.0 × 10(-5) ) clustered within a 47-Kb region of the HLA-DP loci. All the minor alleles of these HLA-DP candidate SNPs were correlated with lower likelihoods of nonresponse to HB vaccine. There was a significant linkage disequilibrium between these HLA-DP candidate SNPs and HLA-DPB1 protective alleles. Multivariate analyses showed that rs7770370 was the most significant genetic factor. As compared with rs7770370 GG homozygotes, adjusted odds ratios were 0.524 (95% confidence interval, 0.276-0.993) and 0.095 (95% confidence interval, 0.030-0.307) for AG heterozygotes and AA homozygotes, respectively. CONCLUSION Our results showed that rs7770370 was the most significant genetic factor of response to HB booster. The rs7770370 and nearby SNPs may also contribute to the long-term immunological memory against HB vaccination.
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Affiliation(s)
- Tzu-Wei Wu
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
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32
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Let It "B"? The role of Hepatitis B universal vaccination among italian problematic drug users. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:3979-92. [PMID: 25872013 PMCID: PMC4410228 DOI: 10.3390/ijerph120403979] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/31/2015] [Accepted: 04/01/2015] [Indexed: 02/07/2023]
Abstract
Hepatitis B virus (HBV) hepatitis is extremely common among problematic drug users (DUs). As of 2012, 47 of the 53 European countries had implemented a universal hepatitis B vaccination programme, a scenario that could radically change its spread. Even so, drug users are still one of the main groups at risk of being infected by HBV, exposing the fact that universal vaccination still has not managed to reach an optimal level of contagion protection. In order to evaluate the role of universal HBV vaccination in protecting against risk behaviour related to the use of illicit drugs, a group of 748 DUs, 511 male and 237 female, was tested for HBV markers, at their first access to public addiction clinics in the metropolitan area of Bologna, Italy. 487 were born after 1981, so they were eligible to have received HBV vaccination in adolescence or at birth; in these subjects antibodies against HBV core antigen had the significant prevalence of 6.2%. Universal HBV vaccination has shown evidence of protecting against infection in the general population. These results, amongst the first to evaluate actual protection in DUs vaccinated at birth or during adolescence, show that compulsory universal vaccination does not solve the problem of HBV transmission in the most at risk groups and that additional strategies must be studied and implemented to address this issue.
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Orlando R, Foggia M, Maraolo AE, Mascolo S, Palmiero G, Tambaro O, Tosone G. Prevention of hepatitis B virus infection: from the past to the future. Eur J Clin Microbiol Infect Dis 2015; 34:1059-70. [PMID: 25678010 DOI: 10.1007/s10096-015-2341-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 01/27/2015] [Indexed: 12/17/2022]
Abstract
About 3-5 % of the world's population is chronically infected by hepatitis B virus (HBV) and is at risk of developing liver cirrhosis or hepatocellular carcinoma. The risk of dying prematurely because of chronic HBV infection is higher in younger people. The current strategies to prevent HBV infection involve immunization (active and/or passive) and antiviral chemoprophylaxis. The vaccines available for active immunization, containing hepatitis B surface antigen, are safe and confer long-term immunity in most healthy subjects. Since the vaccination is unsatisfactory in some patients, e.g., those with chronic kidney disease, human immunodeficiency virus infection, type I diabetes mellitus, and celiac disease, new strategies of vaccination are required. The neonatal, infant, and adolescent routine program vaccination in about 180 countries has greatly decreased the disease burden. Passive immunization with specific HBV immunoglobulins is recommended after single acute exposure, in infants born to infected mothers, and in HBV-infected patients undergoing liver transplantation combined with nucleoside/nucleotide analogues (chemoprophylaxis). Chemoprophylaxis is also indicated in HBV carrier candidates for immunosuppressive treatment and in patients with occult B infection undergoing immunosuppressive therapy or hematopoietic stem cell transplantation. Since HBV is not eradicable by an immune response or by antiviral drugs developed so far, the only preventive strategy remains global neonatal vaccination in all countries, firstly in HBV-endemic countries.
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Affiliation(s)
- R Orlando
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Via Sergio Pansini 5, 80131, Napoli, Italy
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Zaffina S, Marcellini V, Santoro AP, Scarsella M, Camisa V, Vinci MR, Musolino AM, Nicolosi L, Rosado MM, Carsetti R. Repeated vaccinations do not improve specific immune defenses against Hepatitis B in non-responder health care workers. Vaccine 2014; 32:6902-6910. [PMID: 25444815 DOI: 10.1016/j.vaccine.2014.10.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 09/22/2014] [Accepted: 10/27/2014] [Indexed: 01/28/2023]
Abstract
Hepatitis B is a major infectious occupational hazard for health care workers and can be prevented with a safe and effective vaccine. The serum titer of anti-HBsAg antibodies is the most commonly used correlate of protection and post-vaccination anti-HBsAg concentrations of ≥ 10 mIU/ml are considered protective. Subjects with post-vaccination anti-HBsAg titers of <10 mIU/ml 1-6 months post-vaccination, who tested negative for HBsAg and anti-HBc, are defined as non-responders. The question of whether non-responders should be repeatedly vaccinated is still open. The aim of the study was to (i) evaluate the distribution of lymphocyte subpopulations and the percentage of HBsAg-specific memory B cells in responders and non-responders (ii) assess whether non-responders can be induced to produce antibodies after administration of a booster dose of vaccine (iii) determine whether booster vaccination increases the number of specific memory B cells in non-responders. Combining flow-cytometry, ELISPOT and serology we tested the integrity and function of the immune system in 24 health care workers, confirmed to be non-responders after at least three vaccine injections. We compared the results with those obtained in 21 responders working in the same institution. We found that the great majority of the non-responders had a functional immune system and a preserved ability to respond to other conventional antigens. Our most important findings are that the frequency of HBsAg-specific memory B cells is comparable in non-responders and controls and that booster immunization does not lead either to antibody production or memory B cell increase in non-responders.
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Affiliation(s)
- Salvatore Zaffina
- Health Technology Assessment & Safety Research Unit and Occupational Medicine Service, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Valentina Marcellini
- Immunology Unit, Immunology and Pharmacotherapy Research Area, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Anna Paola Santoro
- Health Technology Assessment & Safety Research Unit and Occupational Medicine Service, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Marco Scarsella
- Immunology Unit, Immunology and Pharmacotherapy Research Area, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Vincenzo Camisa
- Health Technology Assessment & Safety Research Unit and Occupational Medicine Service, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Maria Rosaria Vinci
- Health Technology Assessment & Safety Research Unit and Occupational Medicine Service, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Anna Maria Musolino
- Paediatric Emergency Department, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - Luciana Nicolosi
- Department of Pediatrics, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy
| | - M Manuela Rosado
- Immunology Unit, Immunology and Pharmacotherapy Research Area, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy.
| | - Rita Carsetti
- Immunology Unit, Immunology and Pharmacotherapy Research Area, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy; Diagnostic Immunology Unit, Department of Laboratories, Ospedale Pediatrico Bambino Gesù, IRCSS, Piazza S. Onofrio 4, 00165 Roma, Italy.
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35
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Czyż M, Dembczyński R, Marecik R, Wojas-Turek J, Milczarek M, Pajtasz-Piasecka E, Wietrzyk J, Pniewski T. Freeze-drying of plant tissue containing HBV surface antigen for the oral vaccine against hepatitis B. BIOMED RESEARCH INTERNATIONAL 2014; 2014:485689. [PMID: 25371900 PMCID: PMC4209752 DOI: 10.1155/2014/485689] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 09/11/2014] [Accepted: 09/17/2014] [Indexed: 11/17/2022]
Abstract
The aim of this study was to develop a freeze-drying protocol facilitating successful processing of plant material containing the small surface antigen of hepatitis B virus (S-HBsAg) while preserving its VLP structure and immunogenicity. Freeze-drying of the antigen in lettuce leaf tissue, without any isolation or purification step, was investigated. Each process step was consecutively evaluated and the best parameters were applied. Several drying profiles and excipients were tested. The profile of 20°C for 20 h for primary and 22°C for 2 h for secondary drying as well as sucrose expressed efficient stabilisation of S-HBsAg during freeze-drying. Freezing rate and postprocess residual moisture were also analysed as important factors affecting S-HBsAg preservation. The process was reproducible and provided a product with VLP content up to 200 µg/g DW. Assays for VLPs and total antigen together with animal immunisation trials confirmed preservation of antigenicity and immunogenicity of S-HBsAg in freeze-dried powder. Long-term stability tests revealed that the stored freeze-dried product was stable at 4°C for one year, but degraded at elevated temperatures. As a result, a basis for an efficient freeze-drying process has been established and a suitable semiproduct for oral plant-derived vaccine against HBV was obtained.
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Affiliation(s)
- Marcin Czyż
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland
| | | | - Roman Marecik
- Poznań University of Life Sciences, Wojska Polskiego 28, 60-995 Poznań, Poland
| | - Justyna Wojas-Turek
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Magdalena Milczarek
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Elżbieta Pajtasz-Piasecka
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Joanna Wietrzyk
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Tomasz Pniewski
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland
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Lernout T, Hendrickx G, Vorsters A, Mosina L, Emiroglu N, Van Damme P. A cohesive European policy for hepatitis B vaccination, are we there yet? Clin Microbiol Infect 2014; 20 Suppl 5:19-24. [DOI: 10.1111/1469-0691.12535] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Della Corte C, Nobili V, Comparcola D, Cainelli F, Vento S. Management of chronic hepatitis B in children: an unresolved issue. J Gastroenterol Hepatol 2014; 29:912-9. [PMID: 24863185 DOI: 10.1111/jgh.12550] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/04/2013] [Indexed: 12/11/2022]
Abstract
Although a rather benign course of chronic hepatitis B virus (HBV) infection during childhood has been described, 3-5% and 0.01-0.03% of chronic carriers develop cirrhosis or hepatocellular carcinoma before adulthood. Considering the whole lifetime, the risk of hepatocellular carcinoma rises to 9-24% and the incidence of cirrhosis to 2-3% per year. The aim of this article is to review the current knowledge regarding the natural history and treatment of chronic hepatitis B in children and to focus on critical aspects and unresolved questions in the management of childhood HBV infection. A literature search was carried out on MEDLINE, EMBASE, and Web of Science for articles published in English in peer-reviewed journals from January 1980 to February 2013. The search terms used included "Hepatitis B virus infection," "children," "HBV," "interferon," "lamivudine," "adefovir," "entecavir," and "tenofovir." Articles resulting from these searches and relevant references cited in the articles retrieved were reviewed. The current goals of therapy are to suppress viral replication, reduce liver inflammation, and reverse liver fibrosis. Therapeutic options for children are currently limited, and the risk for viral resistance to current and future therapies is a particular concern. Based on the data available at this time, it is the consensus of the panel that it is not appropriate to treat children in the immune-tolerant phase or in the inactive carrier state. For children in the immune-active or reactivation phases, liver histology can help guide treatment decisions. Outside of clinical trials, interferon is the agent of choice in most cases; currently, available nucleoside analogs are secondary therapies.
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Affiliation(s)
- Claudia Della Corte
- HepatoMetabolic Diseases Unit, Children's Hospital Bambino Gesù, Rome, Italy
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Prevalence and correlates of HIV and hepatitis B virus coinfection in Northern Alberta. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2014; 25:e8-e13. [PMID: 24634693 DOI: 10.1155/2014/971546] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND HIV and hepatitis B virus (HBV) share transmission routes, and coinfection is associated with higher morbidity and mortality. To date, no Canadian studies have examined HIV-HBV coinfection. OBJECTIVES To examine the prevalence and correlates of HIV and HBV coinfections in Northern Alberta. METHODS The present study was a retrospective database review of all HIV-infected (HIV+) individuals in Northern Alberta from 1982 to 2010 and a chart review of HBV surface antigen-positive individuals for whom charts were available (46.2%). RESULTS Of 2844 HIV+ patients, 2579 (90.7%) had been tested for HBV surface antigen, and 143 (5.5%) of these were HBV coinfected. Coinfected males were primarily Caucasian (70.8%), and coinfected females were primarily black (56.4%) or Aboriginal (31.3%). Coinfected individuals were more likely to be male (88.1% versus 71.3%; P<0.001) and to have died (34.3% versus 17.9%; P<0.001). CONCLUSIONS The prevalence of coinfection with HBV in HIV-infected patients in Northern Alberta is lower than reported in other developed nations. The pattern of coinfections in Northern Alberta likely follows immigration trends. Recognition and management may be improving with time; however, further research and additional strategies are required to enhance the prevention, identification and management of HBV infection in HIV-infected individuals.
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Homoud AHA. Knowledge, attitudes and practice of primary healthcare physicians concerning the occupational risks of hepatitis B virus in Al Jouf Province, Saudi Arabia. J Infect Public Health 2014; 7:257-70. [PMID: 24602770 DOI: 10.1016/j.jiph.2013.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/25/2013] [Accepted: 08/05/2013] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) infection is a well-recognized occupational risk for all healthcare workers (HCWs) worldwide. AIM This study aimed to assess the knowledge, attitudes, and practices of primary healthcare (PHC) physicians regarding the occupational risks of HBV. METHOD In this cross-sectional study, a questionnaire survey was administered to 145 physicians of primary care centers in the Al Jouf Province of Saudi Arabia. The questionnaire contained questions concerning the knowledge base, attitudes and practices of physicians regarding the occupational risks of HBV. RESULT The response rate of 82.8% yielded 120 questionnaires for analysis. The majority of physicians surveyed, 99 (82.5%), felt at high risk of contracting and spreading HBV. The vast majority, 115 (95.6%), considered the HBV vaccine safe for all ages. Of the total, 101 (84.2%) were vaccinated. Only 44 (36.7%) physicians recognized that HBV is resistant to alcohol and to some detergents. During surgical procedures, only a minority of the physicians always use double gloves and wear glasses. Almost all physicians were willing to subscribe to regular training programs concerning HBV. CONCLUSIONS A lack of knowledge was determined, and the practices of our physicians concerning the occupational risks of HBV appeared inappropriate. More education focusing on HBV is recommended.
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Affiliation(s)
- Al-Hazmi Ahmad Homoud
- Department of Family Medicine, College of Medicine, Al Jouf University, P.O. Box 2014, Sakaka 75741, Saudi Arabia.
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40
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Epidemiology and clinical features of childhood chronic hepatitis B infection diagnosed in England. Pediatr Infect Dis J 2014; 33:130-5. [PMID: 24418835 DOI: 10.1097/inf.0000000000000196] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND This study aimed to estimate the prevalence of childhood chronic hepatitis B (CHB) infection diagnosed in England using capture-recapture analysis of 2 independent data sources and to describe the clinical and epidemiological characteristics, management, complications and outcome of children with CHB. METHODS Pediatric specialists were contacted to report all CHB cases in children aged <16 years and complete a standardized questionnaire. Capture-recapture analysis of cases diagnosed during 2001-2009 using 2 independent data sources was performed to estimate the prevalence of childhood CHB. RESULTS Capture-recapture analysis estimated 448 diagnosed CHB cases (prevalence, 4.6/100,000) in England, of whom only 44% had been referred for specialist follow up. Clinical information for 325 cases under specialist care revealed that half the cases (n = 164, 50%) had been born overseas, mainly Sub-Saharan Africa and Eastern Europe, whereas half the UK-born children were either Pakistani (25%) or Chinese (25%). Most children (n = 216, 66%) were asymptomatic, with only 60 (18.5%) ever receiving any antiviral therapy, although 2 developed cirrhosis in childhood and 1 hepatocellular carcinoma. Horizontal transmission among UK-born children was identified in only 3 children born since 2001, when universal antenatal hepatitis B virus screening was introduced. Most children born to antenatally diagnosed hepatitis B virus-positive mothers (49/51, 96%) had received at least 1 hepatitis B vaccine dose after birth. CONCLUSIONS In England, the prevalence of diagnosed childhood CHB is low, although the potential number of undiagnosed cases is difficult to estimate. Further efforts are required to strengthen the current antenatal screening program and newly diagnosed cases should be referred for specialist follow up.
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Peto TJ, Mendy ME, Lowe Y, Webb EL, Whittle HC, Hall AJ. Efficacy and effectiveness of infant vaccination against chronic hepatitis B in the Gambia Hepatitis Intervention Study (1986-90) and in the nationwide immunisation program. BMC Infect Dis 2014; 14:7. [PMID: 24397793 PMCID: PMC3898092 DOI: 10.1186/1471-2334-14-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 01/04/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Gambian infants were not routinely vaccinated against hepatitis B virus (HBV) before 1986. During 1986-90 the Gambia Hepatitis Intervention Study (GHIS) allocated 125,000 infants, by area, to vaccination or not and thereafter all infants were offered the vaccine through the nationwide immunisation programme. We report HBV serology from samples of GHIS vaccinees and unvaccinated controls, and from children born later. METHODS During 2007-08, 2670 young adults born during the GHIS (1986-90) were recruited from 80 randomly selected villages and four townships. Only 28% (753/2670) could be definitively linked to their infant HBV vaccination records (255 fully vaccinated, 23 partially vaccinated [1-2 doses], 475 not vaccinated). All were tested for current HBV infection (HBV surface antigen [HBsAg]) and, if HBsAg-negative, evidence of past infection (HBV core-protein antibody [anti-HBc]). HBsAg-positive samples (each with two age- and sex-matched HBsAg-negative samples) underwent liver function tests. In addition, 4613 children born since nationwide vaccination (in 1990-2007) were tested for HBsAg. Statistical analyses ignore clustering. RESULTS Comparing fully vaccinated vs unvaccinated GHIS participants, current HBV infection was 0.8% (2/255) vs 12.4% (59/475), p < 0.0001, suggesting 94% (95% CI 77-99%) vaccine efficacy. Among unvaccinated individuals, the prevalence was higher in males (p = 0.015) and in rural areas (p = 0.009), but adjustment for this did not affect estimated vaccine efficacy. Comparing fully vaccinated vs unvaccinated participants, anti-HBc was 27.4% (70/255) vs 56.0% (267/475), p < 0.00001. Chronic active hepatitis was not common: the proportion of HBsAg-positive subjects with abnormal liver function tests (ALT > 2 ULN) was 4.1%, compared with 0.2% in those HBsAg-negative. The prevalence of antibodies to hepatitis C virus was low (0.5%, 13/2592). In children born after the end of GHIS, HBsAg prevalence has remained low; 1.4% (15/1103) in those born between 1990-97, and 0.3% (9/35150) in those born between 1998-2007. CONCLUSIONS Infant HBV vaccination achieves substantial protection against chronic carriage in early adulthood, even though approximately a quarter of vaccinated young adults have been infected. This protection persists past the potential onset of sexual activity, reinforcing previous GHIS findings of protection during childhood and suggesting no need for a booster dose. Nationwide infant HBV vaccination is controlling chronic infection remarkably effectively.
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Affiliation(s)
- Thomas J Peto
- Medical Research Council Laboratories, Fajara, The Gambia
- London School of Hygiene and Tropical Medicine, London, UK
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithi Rd., Bangkok, 10400, Thailand
| | - Maimuma E Mendy
- Medical Research Council Laboratories, Fajara, The Gambia
- International Agency for Research on Cancer, Lyon, France
| | - Yamundow Lowe
- Ministry of Health and Social Welfare, Banjul, The Gambia
| | - Emily L Webb
- London School of Hygiene and Tropical Medicine, London, UK
| | - Hilton C Whittle
- Medical Research Council Laboratories, Fajara, The Gambia
- London School of Hygiene and Tropical Medicine, London, UK
| | - Andrew J Hall
- London School of Hygiene and Tropical Medicine, London, UK
- International Agency for Research on Cancer, Lyon, France
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Poethko-Müller C, Zimmermann R, Hamouda O, Faber M, Stark K, Ross RS, Thamm M. [Epidemiology of hepatitis A, B, and C among adults in Germany: results of the German Health Interview and Examination Survey for Adults (DEGS1)]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2013; 56:707-15. [PMID: 23703489 DOI: 10.1007/s00103-013-1673-x] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ten years after seroepidemiological data were obtained in the German National Health Interview and Examination Survey 1998 (GNHIES98), German Health Interview and Examination Survey (DEGS1) data contribute to a population-based, representative surveillance of hepatitis A and B immunity and of the serological markers for hepatitis C in Germany. The prevalence of antibodies against the hepatitis A virus is 48.6 %. In comparison to the situation 10 years ago, seroprevalence is significantly higher among 18- to 39-year-old adults and is significantly lower in those aged 50-79 years. The association between age and seroprevalence has changed, indicating a decrease in naturally acquired hepatitis A immunity. Individual and population immunity has to be achieved through vaccination. Prevalence of hepatitis B antibodies indicates that 5.1 % of adults have been exposed to the virus, significantly fewer than 10 years ago (7.9 %). Prevalence of hepatitis B surface antibodies indicates that 22.9 % of adults have been vaccinated against hepatitis B. Vaccination coverage has increased in all age groups and is highest in the younger age groups. These positive trends can be attributed to the general recommendation since 1995 to vaccinate against hepatitis B. For hepatitis C, the prevalence of antibodies in the general population is 0.3 %. Germany thus remains a low-HCV-endemic country. An English full-text version of this article is available at SpringerLink as supplemental.
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Affiliation(s)
- C Poethko-Müller
- Robert Koch-Institut, General-Pape-Str. 62-66, 12101 Berlin, Deutschland.
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Alexandre KVF, Martins RMB, Souza MMD, Rodrigues IMX, Teles SA. Brazilian hepatitis B vaccine: a six-year follow-up in adolescents. Mem Inst Oswaldo Cruz 2013; 107:1060-3. [PMID: 23295759 DOI: 10.1590/s0074-02762012000800016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 08/16/2012] [Indexed: 01/05/2023] Open
Abstract
The protective anti-HBs titres were examined six-year post-immunisation with the Brazilian recombinant hepatitis B vaccine. After the primary vaccination, all adolescents (n = 89) responded with protective anti-HBs titres and had a geometric mean titre (GMT) of 4031.8 mIU/mL. In 2010, 94.5% maintained protective anti-HBs (> 10 mIU/mL) antibodies, with a GMT of 236.0 mIU/mL. A positive correlation was observed between the anti-HBs titres after the primary vaccination and the titres at the six-year follow-up (p < 0.01). Eleven subjects showed anti-HBs titres suggestive of a natural booster. Prostitution and tattoos/piercings were marginally associated with natural boosters in the multivariate analysis. This study showed the first data on anti-HBs persistence following the Brazilian hepatitis B vaccine in sexually active individuals and highlights its effectiveness in the medium term.
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Universal hepatitis B vaccination in Belgium: impact on serological markers 3 and 7 years after implementation. Epidemiol Infect 2013; 142:251-61. [DOI: 10.1017/s0950268813001064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
SUMMARYHepatitis B virus (HBV) can be eliminated by effective universal vaccination. In Belgium, a free-of-charge HBV vaccination programme in infants with catch-up in adolescents was introduced in 1999. To evaluate the effects in <20-year-olds, seroprotection (anti-HBs >11 mIU/ml, according to the assay) and markers of infection (anti-HBc, HBsAg) were assessed in 2443 residual sera collected 7–8 years after implementation of the programme. The maximal prevalence of a solely anti-HBs seroprotective (‘vaccinated’) serostatus was 82·9% at age 1 year and 60·5% at age 13 years. A clear increase was found in age cohorts targeted by the campaign after a similar serosurvey conducted 4 years earlier. The prevalence of HBV infection remained unchanged at a low level (1·8% in 2006) similar to pre-vaccination data (1993–1994). We conclude that universal HBV vaccination has achieved overall high levels of vaccine-induced immunity, despite regional variations, which may give rise to pockets of susceptible young adults in the future.
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Park B, Choi KS, Lee HY, Kwak MS, Jun JK, Park EC. Determinants of suboptimal hepatitis B vaccine uptake among men in the Republic of Korea: where should our efforts be focused: results from cross-sectional study. BMC Infect Dis 2013; 13:218. [PMID: 23672452 PMCID: PMC3680193 DOI: 10.1186/1471-2334-13-218] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 05/10/2013] [Indexed: 01/09/2023] Open
Abstract
Background Liver cancer is the second most-frequent cause of cancer death in Korea. Hepatitis B virus (HBV) infection is a major cause of liver cancer, and this disease is effectively prevented by HBV vaccination. This study was conducted to investigate factors associated with the lack of HBV vaccine uptake in the general adult male population in Korea. Methods Data of men who participated in a nationwide cross-sectional interview survey were analyzed. A total of 2,174 men 40 years of age and older were interviewed between 2006 and 2008. None of the participants was infected with HBV or was experiencing sequelae of an HBV infection. Results Only half (50.4%) of the men received one or more dose of the three-dose series of HBV vaccinations, and 32.5% received all three doses. Compared with men who had completed the vaccination regimen, non-vaccinated men were more likely to lack supplemental medical insurance for cancer (odds ratio = 0.66, 95% confidence interval: 0.52–0.84), have lower incomes (p-trend = 0.010), and be less educated (p-trend = 0.021). Lower education was also more prevalent in the non-vaccinated group compared with the incompletely vaccinated group. Those who had completed the vaccination regimen were likely to be more educated than those in the incompletely vaccinated group (p-trend = 0.044). The most commonly cited reason for not obtaining the HBV vaccine was lack of knowledge regarding the need for the vaccination. The number of men who cited this reason decreased as a function of education. Conclusions It is important to develop strategic interventions targeted at less-educated men to increase uptake of a complete three-dose series of HBV vaccinations as a primary approach to preventing liver cancer.
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Affiliation(s)
- Boyoung Park
- National Cancer Control Institute, National Cancer Centre, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-769, Korea
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Reframing cervical cancer prevention. Expanding the field towards prevention of human papillomavirus infections and related diseases. Vaccine 2013. [PMID: 23199951 DOI: 10.1016/j.vaccine.2012.05.090] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The reframed paradigm of cervical cancer prevention will include strategic combinations of at least four major components: 1) routine introduction of human papillomavirus (HPV) vaccines to women in all countries, 2) extension and simplification of existing screening programs using HPV-based technology, 3) extension of adapted screening programs to developing populations, and 4) consideration of the broader spectrum of cancers and other diseases preventable by HPV vaccination in women, as well as in men. On a global scale, vaccination of newborns and infants is well established and has developed a successful working infrastructure. The hepatitis B virus (HBV) vaccination programs offer a model for HPV introduction in which newborn and infant immunization achieves a rapid reduction in the prevalence of the HBV carrier rates in immunized cohorts of children, and of liver cirrhosis and liver cancer decades later. In contrast, screening for cervical pre-cancer is largely restricted to industrialized populations and upper social classes in developing countries. The expertise gained by vaccination programs worldwide needs to be coordinated with the traditional cervical cancer prevention community of gynecologists and pathologists. Significant political and advocacy efforts at the Global level (World Health Organization, other United Nations agencies and The GAVI Alliance) need to be organized and reinforced to achieve a meaningful reduction in HPV transmission and its related health conditions and cancers. This desirable goal is now scientifically and technologically attainable, and great progress is being made in obtaining financing for global HPV immunization. This article forms part of a special supplement entitled "Comprehensive Control of HPV Infections and Related Diseases" Vaccine Volume 30, Supplement 5, 2012.
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Chen SCC, Toy M, Yeh JM, Wang JD, Resch S. Cost-effectiveness of augmenting universal hepatitis B vaccination with immunoglobin treatment. Pediatrics 2013; 131:e1135-43. [PMID: 23530168 PMCID: PMC4015450 DOI: 10.1542/peds.2012-1262] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE To compare the cost-effectiveness of hepatitis B virus (HBV) control strategies combining universal vaccination with hepatitis B immunoglobulin (HBIG) treatment for neonates of carrier mothers. METHODS Drawing on Taiwan's experience, we developed a decision-analytic model to estimate the clinical and economic outcomes for 4 strategies: (1) strategy V-universal vaccination; (2) strategy S-V plus screening for hepatitis B surface antigen (HBsAg) and HBIG treatment for HBsAg-positive mothers' neonates; (3) strategy E-V plus screening for hepatitis B e-antigen (HBeAg), HBIG for HBeAg-positive mothers' neonates; (4) strategy S&E-V plus screening for HBsAg then HBeAg, HBIG for all HBeAg-positive, and some HBeAg-negative/HBsAg-positive mothers' neonates. RESULTS Strategy S averted the most infections, followed by S&E, E, and V. In most cases, the more effective strategies were also more costly. The willingness-to-pay (WTP) above which strategy S was cost-effective rose as carrier rate declined and was <$4000 per infection averted for carrier rates >5%. The WTP below which strategy V was optimal also increased as carrier rate declined, from $1400 at 30% carrier rate to $3100 at 5% carrier rate. Strategies involving E were optimal for an intermediate range of WTP that narrowed as carrier rate declined. CONCLUSIONS HBIG treatment for neonates of HBsAg carrier mothers is likely to be a cost-effective addition to universal vaccination, particularly in settings with adequate health care infrastructure. Targeting HBIG to neonates of higher risk HBeAg-positive mothers may be preferred where WTP is moderate. However, in very resource-limited settings, universal vaccination alone is optimal.
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Affiliation(s)
- Solomon Chih-Cheng Chen
- Department of Global Health and Population, Harvard School of Public Health, Boston, Massachusetts;,Chia-Yi Christian Hospital, Chia-Yi City, Taiwan
| | - Mehlika Toy
- Department of Global Health and Population, Harvard School of Public Health, Boston, Massachusetts;,Department of Public Health, Erasmus Medical Center, Erasmus University, Rotterdam, Netherlands
| | - Jennifer M. Yeh
- Center for Health Decision Science, Harvard School of Public Health, Boston, Massachusetts; and
| | - Jung-Der Wang
- Department of Public Health, National Cheng Kung University, College of Medicine and Hospital, Tainan City, Taiwan
| | - Stephen Resch
- Center for Health Decision Science, Harvard School of Public Health, Boston, Massachusetts; and
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Vitaliti G, Praticò AD, Cimino C, Di Dio G, Lionetti E, La Rosa M, Leonardi S. Hepatitis B vaccine in celiac disease: Yesterday, today and tomorrow. World J Gastroenterol 2013; 19:838-45. [PMID: 23430309 PMCID: PMC3574880 DOI: 10.3748/wjg.v19.i6.838] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/12/2012] [Accepted: 10/16/2012] [Indexed: 02/06/2023] Open
Abstract
Some studies showed that in celiac patients the immunological response to vaccination is similar to that one found in general population except for vaccine against hepatitis B virus (HBV). The non-responsiveness to HBV vaccine has also been described in healthy people, nevertheless the number of non-responders has been demonstrated to be higher in celiac disease (CD) patients than in healthy controls. Several hypothesis explaining this higher rate of unresponsiveness to HBV vaccine in CD patients have been described, such as the genetic hypothesis, according with CD patients carrying the disease-specific haplotype HLA-B8, DR3, and DQ2, show a lower response to HBV vaccine both in clinical expressed CD patients and in healthy people carrying the same haplotype. On the other hand, it has been demonstrated that the gluten intake during the vaccination seems to influence the response to the same vaccine. Moreover, it has been demonstrated a possible genetic predisposition to hepatitis B vaccine non-responsiveness likely due to the presence of specific human leukocyte antigen haplotypes and specific single nucleotide polymorphism in genes of cytokine/cytokine receptors and toll like receptors, but the pathogenic mechanism responsible for this low responsiveness still remains unclear. The aim of this review is to focus on the possible pathogenic causes of unresponsiveness to HBV vaccine in CD patients and to propose an alternative vaccination schedule in order to improve the responsiveness to HBV vaccine in this at-risk patients.
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Abstract
Hepatocellular carcinoma (HCC), the most common form of primary liver cancer is the third leading cause of cancer-related cell death in human and the fifth in women worldwide. The incidence of HCC is increasing despite progress in identifying risk factors, understanding disease etiology and developing anti-viral strategies. Therapeutic options are limited and survival after diagnosis is poor. Therefore, better preventive, diagnostic and therapeutic tools are urgently needed, in particular given the increased contribution from systemic metabolic disease to HCC incidence worldwide. In the last three decades, technological advances have facilitated the generation of genetically engineered mouse models (GEMMs) to mimic the alterations frequently observed in human cancers or to conduct intervention studies and assess the relevance of candidate gene networks in tumor establishment, progression and maintenance. Because these studies allow molecular and cellular manipulations impossible to perform in patients, GEMMs have improved our understanding of this complex disease and represent a source of great potential for mechanism-based therapy development. In this review, we provide an overview of the current state of HCC modeling in the mouse, highlighting successes, current challenges and future opportunities.
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Boccalini S, Taddei C, Ceccherini V, Bechini A, Levi M, Bartolozzi D, Bonanni P. Economic analysis of the first 20 years of universal hepatitis B vaccination program in Italy: an a posteriori evaluation and forecast of future benefits. Hum Vaccin Immunother 2013; 9:1119-28. [PMID: 23376840 DOI: 10.4161/hv.23827] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Italy was one of the first countries in the world to introduce a routine vaccination program against HBV for newborns and 12-y-old children. From a clinical point of view, such strategy was clearly successful. The objective of our study was to verify whether, at 20 y from its implementation, hepatitis B universal vaccination had positive effects also from an economic point of view. An a posteriori analysis evaluated the impact that the hepatitis B immunization program had up to the present day. The implementation of vaccination brought an extensive reduction of the burden of hepatitis B-related diseases in the Italian population. As a consequence, the past and future savings due to clinical costs avoided are particularly high. We obtained a return on investment nearly equal to 1 from the National Health Service perspective, and a benefit-to-cost ratio slightly less than 1 for the Societal perspective, considering only the first 20 y from the start of the program. In the longer-time horizon, ROI and BCR values were positive (2.78 and 2.46, respectively). The break-even point was already achieved few years ago for the NHS and for the Society, and since then more and more money is progressively saved. The implementation of universal hepatitis B vaccination was very favorable during the first 20 y of adoption, and further benefits will be increasingly evident in the future. The hepatitis B vaccination program in Italy is a clear example of the great impact that universal immunization is able to provide in the medium-long-term when health care authorities are so wise as to invest in prevention.
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Affiliation(s)
- Sara Boccalini
- Department of Health Sciences; University of Florence; Florence, Italy
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