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Batista KZS, Azambuja LPD, Souza SD, Souza MCD, Cordova CMMD, Silva Filho HHD. Anti-Hepatitis B Antibody Levels In Immunized Medical Students: Are They At Risk? Rev Soc Bras Med Trop 2019; 52:e20180132. [PMID: 31141041 DOI: 10.1590/0037-8682-0132-2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 02/14/2019] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Medical students have an occupational risk for hepatitis B (HB). This study sought to determine anti-HBs and anti-HBc IgG levels in vaccinated students, check their seroconversion, and correlate this with vaccination. METHODS One hundred and forty-three students' blood samples and their vaccination schedules were analyzed. RESULTS 65.7% were positive for anti-HBs; however, anti-HBs was absent in 34.3%. Only two samples were positive for anti-HBc IgG. CONCLUSIONS More than 30% of students did not have minimum protective levels. Comparing HBV vaccination and anti-HBs reactivity, the majority of reactive individuals received their last dose within the past 16 years.
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Affiliation(s)
| | - Lucas Pecker de Azambuja
- Departamento de Medicina, Centro de Ciências da Saúde, Universidade Regional de Blumenau, Blumenau, SC, Brasil
| | - Suzane de Souza
- Departamento de Medicina, Centro de Ciências da Saúde, Universidade Regional de Blumenau, Blumenau, SC, Brasil
| | - Maely Cordeiro de Souza
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Regional de Blumenau, Blumenau, SC, Brasil
| | - Caio Maurício Mendes de Cordova
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Regional de Blumenau, Blumenau, SC, Brasil
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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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Narciso-Schiavon JL, Schiavon LDL, Carvalho-Filho RJD, Emori CT, Maryia FA, Bordin JO, Silva AEB, Ferraz MLG. Clinical and epidemiological profile of female blood donors with positive serology for viral hepatitis B. Rev Soc Bras Med Trop 2016; 48:524-31. [PMID: 26516960 DOI: 10.1590/0037-8682-0157-2015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 08/14/2015] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Since women are frequently the minority among blood donors worldwide, studies evaluating this population usually reflect male features. We assessed the features of female blood donors with positive serology for HBV and compared them with those of men.METHODS The study comprised consecutive blood donors referred to a specialized liver disease center to be evaluated due to HBsAg- and/or anti-HBc-positive tests. RESULTS The study encompassed 1,273 individuals, 219 (17.2%) of whom were referred due to positive HBsAg test and 1,054 (82.8%) due to reactive anti-HBc test. Subjects' mean age was 36.8±10.9 years, and 28.7% were women. Female blood donors referred for positive HBsAg screening tests demonstrated higher prevalence of healthcare workers (9.3% vs 2.5%) and lower prevalence of sexual risk behaviors (15.1% vs 41.1%) and alcohol abuse (1.9% vs 19.8%) compared to men. Women had lower ALT (0.6 vs 0.8×ULN), AST (0.6 vs 0.8×ULN), direct bilirubin (0.2 vs 0.3mg/dL), and alkaline phosphatase (0.5 vs 0.6×ULN) levels and higher platelet count (223,380±50,293 vs 195,020±53,060/mm3). Women also had a higher prevalence of false-positive results (29.6% vs 17.0%). No differences were observed with respect to liver biopsies. Female blood donors referenced for reactive anti-HBc screening tests presented similar clinical, epidemiological, and biochemical characteristics to those reported for positive HBsAg screening tests and similarly had a higher prevalence of false-reactive results. CONCLUSIONS Compared to men, female blood donors with positive HBsAg and/or anti-HBc screening tests demonstrated higher prevalence of professional risk and false-positive results and reduced alteration of liver chemistry.
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Affiliation(s)
- Janaína Luz Narciso-Schiavon
- Núcleo de Estudos em Gastroenterologia e Hepatologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Leonardo de Lucca Schiavon
- Núcleo de Estudos em Gastroenterologia e Hepatologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | | | - Christine Takemi Emori
- Divisão de Gastroenterologia, Setor de Hepatites, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Fernando Akio Maryia
- Divisão de Gastroenterologia, Setor de Hepatites, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - José Orlando Bordin
- Divisão de Hematologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | | | - Maria Lucia Gomes Ferraz
- Divisão de Gastroenterologia, Setor de Hepatites, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
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Souto FJD. Distribution of hepatitis B infection in Brazil: the epidemiological situation at the beginning of the 21 st century. Rev Soc Bras Med Trop 2015; 49:11-23. [DOI: 10.1590/0037-8682-0176-2015] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 07/17/2015] [Indexed: 01/04/2023] Open
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Ream PSF, Tipple AFV, Barros DX, Souza ACS, Pereira MS. Biological risk among hospital housekeepers. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2014; 71:59-65. [PMID: 25136771 DOI: 10.1080/19338244.2014.927347] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Although not directly responsible for patient care, hospital housekeepers are still susceptible to accidents with biological material. The objectives of this study were to establish profile and frequency of accidents among hospital housekeepers, describe behaviors pre- and postaccident, and risk factors. This was a cross-sectional study with hospital housekeepers in Goiania, Brazil. Data were obtained from interviews and vaccination records. The observations were as follows: (1) participating workers: 94.3%; (2) incomplete hepatitis B vaccination: 1 in 3; and (3) accident rate: 26.5%, mostly percutaneous with hypodermic needles, and involved blood from an unknown source; roughly half occurred during waste management. Upon review, length of service less than 5 years, completed hepatitis B vaccination, and had been tested for anti-HBs (hepatitis B surface antigen) influenced frequency of accidents. These findings suggest that improper disposal of waste appears to enhance the risk to hospital housekeepers. All hospital workers should receive continued training with regard to waste management.
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Affiliation(s)
| | | | | | - Adenícia Custódia Silva Souza
- a College of Nursing, Federal University of Goias , Goiania , Brazil
- b Department of Nursing, Nutrition and Physiotherapy, Pontifical Catholic University of Goias , Goiania , Brazil
| | - Milca Severino Pereira
- b Department of Nursing, Nutrition and Physiotherapy, Pontifical Catholic University of Goias , Goiania , Brazil
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Assunção AÁ, Araújo TMD, Ribeiro RBN, Oliveira SVS. Vacinação contra hepatite B e exposição ocupacional no setor saúde em Belo Horizonte, Minas Gerais. Rev Saude Publica 2012; 46:665-73. [DOI: 10.1590/s0034-89102012005000042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJETIVO: Identificar fatores associados à vacinação contra hepatite B em trabalhadores da saúde. MÉTODOS: Estudo transversal com 1.808 trabalhadores da saúde do setor público de Belo Horizonte, MG, em 2009. Questionário autoadministrado foi usado e a situação vacinal foi analisada considerando características sociodemográficas, estilo de vida, características e condições de trabalho. Análises estatísticas univariada (p < 0,20) e múltipla foram realizadas utilizando regressão de Poisson (p < 0,05) para avaliação de fatores associados à vacinação. RESULTADOS: Declararam ter sido vacinados 85,6% dos trabalhadores, 74,9% dos quais receberam esquema completo da vacina. Não ter sido vacinado associou-se a não ter companheiro, a escolaridade em nível médio/técnico ou superior incompleto e a características do trabalho, como atuar na vigilância ou setor administrativo/serviços gerais e não utilizar equipamentos de proteção individual. CONCLUSÕES: Foram identificados grupos com menor cobertura vacinal. São necessários esforços para garantir o acesso e a adesão à vacinação a todos os grupos ocupacionais.
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Contrera-Moreno L, Andrade SMOD, Pontes ERJC, Stief ACF, Pompilio MA, Motta-Castro ARC. Hepatitis B virus infection in a population exposed to occupational hazards: firefighters of a metropolitan region in central Brazil. Rev Soc Bras Med Trop 2012; 45:463-7. [DOI: 10.1590/s0037-86822012000400009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 02/13/2012] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION: By the nature of their activities, firefighters are exposed to a high risk of contracting hepatitis B virus (HBV) as most of the Fire Brigade occurrences in Campo Grande, State of Mato Grosso do Sul (MS), Brazil, are related to the rescue of victims of traffic accidents and the transportation of clinical and psychiatric emergencies. The aim of this study was to investigate the seroepidemiological profile of HBV infection in firefighters from the City of Campo Grande, central Brazil. METHODS: The research involved 308 firefighters. After giving written consent, they were interviewed and blood was collected for the detection of HBsAg, anti-HBs and total anti-HBc of enzyme-linked immunosorbent assays (ELISA). RESULTS: The participants had an average of 36.4 years of age (SD ± 6.5), being 89.9% male. Blood tests revealed 6.5% of seropositivity for hepatitis B (HB) infection (n=20), and 1% for HbsAg. Isolated anti-HBs markers, indicative of vaccine immunity, were found in 66.9% of the participants and 28.2% were susceptible to infection. With regard to risk factors for HB infection, multivariate regression analysis showed a statistically significant association with length of service; and prevalence was higher in individuals with over 20 years of service. CONCLUSIONS: The prevalence of HB found among the firefighters was low and length of time in the profession was found to be a risk factor. Non-occupational risk factors did not influence the occurrence of HB infection in the population studied.
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Livramento AD, Cordova CMMD, Spada C, Treitinger A. Seroprevalence of hepatitis B and C infection markers among children and adolescents in the southern Brazilian region. Rev Inst Med Trop Sao Paulo 2011; 53:13-7. [PMID: 21412614 DOI: 10.1590/s0036-46652011000100003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 10/27/2010] [Indexed: 01/04/2023] Open
Abstract
Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections account for a substantial proportion of liver diseases worldwide. The aim of this study was to determine the prevalence of HBV and HCV serological markers among children and adolescents and verify the epidemiology of the HBV infection over than a decade of the introduction of vaccination program. Serologic markers to HBsAg, total anti-HBc and anti-HCV had been tested in 393 samples. The seropositivity for HBsAg was 0.76% and for total anti-HBc was 1.02%. Copositivity between HBsAg and total anti-HBc was verified in 0.76% of the analyzed samples. There was no seropositivity for anti-HCV marker. The seroprevalence of HBV infection markers among children and adolescents in the southern Brazilian region is high compared to that reported in other countries. Preventive measures, such as educational activities in addition to the universal childhood HBV vaccination, should be initiated in order to reduce the morbimortality and the economic burden associated with the disease.
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Affiliation(s)
- Andréa do Livramento
- Programa de Pós-graduação em Farmácia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brasil
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Batista SMF, Andreasi MSA, Borges AMT, Lindenberg ASC, Silva AL, Fernandes TD, Pereira EF, Basmage EAM, Cardoso DDP. Seropositivity for hepatitis B virus, vaccination coverage, and vaccine response in dentists from Campo Grande, Mato Grosso do Sul, Brazil. Mem Inst Oswaldo Cruz 2006; 101:263-7. [PMID: 16862319 DOI: 10.1590/s0074-02762006000300006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2005] [Accepted: 04/03/2006] [Indexed: 11/22/2022] Open
Abstract
This study investigated the seropositivity for hepatitis B virus (HBV), the vaccination index, and the vaccine response index in dentists from Campo Grande, MS. Blood samples from 474 dentists (63.7% women and 36.3% men), with a mean age of 38.5 +/- 10.5 years were analyzed by enzyme-linked immunosorbent assay to detect the serological markers: HBsAg, anti-HBs, and anti-HBc. The HBsAg positive samples were tested for anti-HBc IgM, HBeAg, and anti-HBe. A total of 51 (10.8%) dentists showed seropositivity for HBV. Three (0.6%) were HBsAg/anti-HBc/anti-HBe positive, 43 (9.1%) were anti-HBc/anti-HBs positive, and 5 (1.1%) had only anti-HBc. Viral DNA was detected by polymerase chain reaction in 9 (17.6%) out of 51 HBV seropositive samples. A vaccination index of 96.6% (458/474) was observed, although 73.1% (335/458)completed the three-dose schedule. Excluding 46 HBV seropositive individuals from 458 that reported vaccination, 412 were analyzed for vaccine response index. It was observed that 74.5% (307/412) were anti-HBs positive; this percentage increased to 79.1% when three doses were administered. The results showed a high vaccination index and a good rate of vaccine response; however, the failure in completing the three-dose schedule and the occurrence of HBV infection reinforce the need for more effective prevention strategies.
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Affiliation(s)
- Sonia M F Batista
- Departamento de Patologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 79070-900, Brasil.
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