INTRODUCTION: This study aimed to estimate the prevalence of HBV infection and associated factors among prison inmates in Campo Grande, MS. METHODS: A total of 408 individuals were interviewed regarding sociodemographic characteristics, associated factors and HBV vaccination using a standardized questionnaire. Blood samples were collected from all participants and serological markers for HBV were detected by enzyme-linked immunosorbent assay. Hepatitis B surface antigen (HBsAg) and/or antibodies against hepatitis B core antigen (anti-HBc) positive samples were tested for HBV-DNA by polymerase chain reaction. RESULTS: The overall prevalence of HBV infection was 17.9% (95%CI: 14.4-22.0). The HBsAg carrier rate was 0.5%; 56 (13.7%) individuals had been infected and developed natural immunity and 15 (3.7%) were positive for anti-HBc only. Ninety eight (24%) prisoners had only anti-HBs, suggesting that they had low vaccine coverage. An occult HBV infection rate of 0% was verified among anti-HBc-positive individuals. Multivariate analysis of associated factors showed that age > 35 years-old, low schooling level and illicit drug use are significantly associated with HBV infection. CONCLUSIONS: Analysis of the data showed HBV infection prevalence similar or slightly lower than that reported in other of Brazilian prisons. Independent predictors of HBV infection in this population include older age, low schooling level and illicit drug use.

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. Keywords: Hepatitis B. Firefighters. Occupational hazards. RESUMO Introdução:Os bombeiros pela natureza de suas atividades possuem elevado risco para aquisição da infecção pelo vírus da hepatite B (VHB), pois a maioria das ocorrências atendidas em Campo Grande, Estado do Mato Grosso do Sul (MS), Brasil, estão relacionadas ao resgate de vítimas de acidentes de trânsito e transporte de emergências clínicas e psiquiátricas. O objetivo deste estudo foi investigar o perfil soroepidemiológico da infecção pelo HBV em bombeiros do município de Campo Grande, Brasil Central. Métodos: Participaram da pesquisa 308 bombeiros. Após consentimento, foram submetidos à entrevista, coleta de sangue e testes sorológicos para detecção dos marcadores HBsAg, anti-HBs e anti-HBc total por enzyme-linked immunosorbent assays (ELISA). Resultados: A média de idade dos participantes da pesquisa foi de 36,4 anos (±6,5 DP), sendo 89,9% do sexo masculino. Foi encontrado percentual de soropositividade de infecção para hepatite B (HB) de 6,5% (n=20), sendo 1% para o HBsAg. A presença do marcador anti-HBs isolado, indicativo de imunidade vacinal foi encontrada em 66,9% e 28,2% dos indivíduos estavam susceptíveis à infecção. Com relação aos fatores de risco para infecção pelo VHB, a análise de regressão multivariada demonstrou associação estatística significativa com o tempo de serviço, sendo a prevalência maior em indivíduos com mais de 20 anos de serviço. Conclusões: A prevalência de HB encontrada nos bombeiros foi baixa, sendo encontrado...

BACKGROUND:Melanoma inhibitory activity is a protein secreted by melanoma cells and has been used as a tumor marker. Increased Melanoma inhibitory activity serum levels are related to metastatic disease or tumor recurrence. Currently there are no studies on Melanoma inhibitory activity and cutaneous melanoma involving Brazilian patients.OBJECTIVE:To evaluate the performance and feasibility of measuring Melanoma inhibitory activity levels in Brazilian patients with cutaneous melanoma.METHODS:Blood was obtained from ten patients with proved metastatic cutaneous melanoma (Group 1), 15 patients resected for cutaneous melanoma without metastasis (Group 2) and 5 healthy donors (Group 3). Melanoma inhibitory activity was measured using a commercially available ELISA kit.RESULTS:There was a statistically significant difference of Melanoma inhibitory activity levels between patients with and without metastasis (p=0.002), and between patients with metastasis and healthy donors (p=0.002). There was no difference between patients without metastasis and healthy donors (p=0.443).CONCLUSION:Melanoma inhibitory activity is a tumor marker for cutaneous melanoma and the Melanoma inhibitory activity-ELISA test can be easily performed. Patients with metastasis have increased Melanoma inhibitory activity serum levels when compared to patients without metastasis and healthy donors.

The study was aimed at estimating the prevalence of infection with and the genotype of hepatitis C virus (HCV), and to determine the extent of underreporting of HCV cases.

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