Is waste collection associated with hepatitis B infection? A meta-analysis

Abstract This meta-analysis, which is based on a previously published systematic review, aims to contribute to the scientific discussion on hepatitis B virus (HBV) infection in workers who are exposed to domestic and healthcare wastes. Publications were sought which had been made available on the data used by December 2013 and updated to December 2016. The quality of the included studies was assessed according to the guidelines of Loney et al. for the critical appraisal of studies on the prevalence or incidence of a health problem. To verify the presence of heterogeneity between the papers, we used the Chi-squared test based on a Q statistic. A funnel plot was used to test for publication bias. All included studies had across-sectional study design. The association between exposure to waste and positive serology for the HBV surface antigen (HBsAg) showed a significant association [odds ratio (OR) 1.89, 95% confidence interval (CI) 1.27-2.86; p = 0.0019]. The prevalence rates of HBsAg and anti-HBc seropositivity was 0.04 (95% CI 0.03-0.05) and 0.21 (95% CI 0.14-0.28), respectively (p <0.0001). We found no evidence of publication bias. The results of this meta-analysis indicate a statistically significant association between exposure to solid waste, whether healthcare or domestic, and positive HBV infection markers. Therefore, the working conditions of waste collectors should be analyzed more closely. Immunization against HBV is recommended as the chief preventive measure for all solid waste workers.

Trinta anos de enfrentamento à epidemia da Aids no Brasil, 1985-2015 / Thirty years of confronting the Aids epidemic in Brazil, 1985-2015

Resumo A resposta brasileira à Aids foi iniciada em 1985, quando o estado brasileiro, a sociedade civil e a academia se associaram com objetivos comuns. Esta se fortaleceu com a criação do SUS em 1988, imprescindível para implementar o programa nacional de Controle das DST/AIDS, baseado nos direitos humanos, visando equidade, inclusão, integralidade e contra o preconceito e a discriminação. O Brasil foi dos primeiros a disponibilizar, já em 1996, na saúde pública, tratamento adequado para todas as PVHA. O artigo descreve os êxitos e os indesculpáveis retrocessos destes 30 primeiros anos e as perspectivas para o controle e eventual eliminação da aids. Pode-se afirmar que há condições para eliminar o preconceito, a discriminação e diminuir a disparidade, pano de fundo para a disseminação da AIDS e de outras epidemias. Estão disponíveis instrumentos para tratar adequadamente as PVHA, para eliminar a transmissão do HIV e proteger os direitos de todos. Entretanto, para que isso aconteça, é necessária a ampliação do acesso à educação, incluindo educação sexual, e cuidados de saúde de qualidade. Necessário ainda o enfrentamento diuturno do conservadorismo e de toda violência e discriminação contra pessoas em risco ou vivendo com HIV. A experiência brasileira nestes 30 anos é inestimável alavanca para alcançar o fim da epidemia.

Abstract The Brazilian response to AIDS started in 1985, with government, civil society and academic community coming together with common goals. This was strengthened with the establishment in 1988 of an universal public health system (SUS), pivotal to a comprehensive and human rights-based national STD/AIDS programme, aiming at achieving equality, integrality, inclusion and fighting prejudice and discrimination. In 1996 Brazil was a pioneer in providing treatment free-of-charge to all PLHA. This article depicts achievements and setbacks that occurred in these 30 years and the perspectives for controlling and eventually eliminating HIV/AIDS. It is fair to affirm that it is possible to defeat prejudice and discrimination and to confront the unacceptable levels of disparity, fertile ground for dissemination of HIV/AIDS and other epidemics. Tools to eliminate transmission, to adequately treat PLHA, to protect their rights, to eliminate discrimination and to end AIDS are already at hand. However, the needed changes for this to happen involve expansion of access to education, including sexual education and to quality public health care to all. It is also necessary to constant confront conservatism and to combat violence and discrimination. Brazil’s track record in the confrontation of AIDS is an invaluable asset to achieve these goals.

Social and immunological differences among uninfected Brazilians exposed or unexposed to human immunodeficiency virus-infected partners

Understanding the social conditions and immunological characteristics that allow some human immunodeficiency virus (HIV)-exposed patients to remain uninfected represents an on-going challenge. In this study, the socio-demographic and sexual behaviour characteristics and immune activation profiles of uninfected individuals exposed to HIV-infected partners were investigated. A confidential and detailed questionnaire was administered and venous blood was tested using HIV-1/enzyme immunoassays, plasma HIV-1 RNA levels/bDNA and immunophenotyping/flow cytometry to determine the frequencies of CD4 and CD8 T cells expressing activation markers. The data analysis showed significant differences (p < 0.05) for immune parameters in individuals who were uninfected, albeit exposed to HIV-infected partners, compared with unexposed individuals. In particular, the exposed, uninfected individuals had a higher frequency (median, minimum-maximum) of CD4+HLA-DR+ (4.2, 1.8-6.1), CD8+HLA-DR+ (4.6, 0.9-13.7), CD4+CD45RO+ (27.5, 14.2-46.6), CD4+CD45RO+CD62L+ (46.7, 33.9-67.1), CD8+CD45RA+HLA-DR+ (12.1, 3.4-35.8) and CD8+CD45RO+HLA-DR+ (9.0, 3.2-14.8) cells, a decreased percentage of CD8+CD28+ cells (11.7, 4.5-24.0) and a lower cell-surface expression of Fcγ-R/CD16 on monocytes (56.5, 22.0-130.0). The plasma HIV-1 RNA levels demonstrated detectable RNA virus loads in 57% of the HIV-1+ female partners. These findings demonstrate an activation profile in both CD4 and CD8 peripheral T cells from HIV-1 exposed seronegative individuals of serodiscordant couples from a referral centre in Belo Horizonte, state of Minas Gerais.

Profile of patients diagnosed with AIDS at age 60 and above in Brazil, from 1980 until June 2009, compared to those diagnosed at age 18 to 59

OBJECTIVES: The aim of this study was to learn more about people diagnosed with acquired immunodeficiency syndrome (AIDS) at age 60 and above in Brazil, and to compare them with people diagnosed at a younger age. METHODS: This study was based on the analysis of secondary data from the Brazilian AIDS Program. The study population consisted of people diagnosed with AIDS at age 60 and above. The comparison group was comprised of a 20% random sample of people diagnosed at age 18 to 59, frequency-matched by year of diagnosis. RESULTS: 544,846 cases of AIDS were reported in Brazil from 1980 until June 2009. Over 90% of cases were diagnosed between 18 and 59 years of age, and 13,657 (2.5%) at age 60 and above. The first case of AIDS among the elderly was reported in 1984. The comparison group consisted of 101,528 patients. Gender proportion was similar for both groups, and the proportion of people identified with AIDS after death in the Brazilian Mortality Information System (SIM) was 4% higher among the elderly. Both groups were also similar regarding the region of residence; a markedly higher proportion lived in Southeastern Brazil. Older people were more likely to have lower education and to have contracted AIDS by heterosexual contact, and less likely to be intravenous drug users. Male to female ratio among those diagnosed with AIDS at or above age 60 decreased over the years, in the same way as observed for the whole cohort. Mortality was higher among men in both groups. CD4 category (taken closest to the date of AIDS diagnosis) was very similar in both groups. CONCLUSION: The characteristics of the epidemic among the elderly show similarities to the younger group considering gender distribution and CD4 category, but differ regarding educational level and exposure category. Also, the elderly were more likely not to have their AIDS condition promptly diagnosed.

Perda auditiva sensório-neural na otite média crônica supurativa em pacientes com e sem colesteatoma / Sensorineural hearing loss in chronic suppurative otitis media with and without cholesteatoma

Perda auditiva sensório-neural (PASN) relacionada a otite média crônica supurativa (OMCS) foi estudada para esclarecer a participação do colesteatoma nesse contexto. OBJETIVO: Avaliar ocorrência de PASN na OMCS, correlacionando com colesteatoma, duração da doença e idade. CASUÍSTICA E MÉTODOS: Estudo retrospectivo de 115 pacientes com OMCS com e sem colesteatoma submetidos à cirurgia. Incluíram-se pacientes com doença unilateral, orelha contralateral normal e idade inferior a 60 anos. RESULTADOS: Idade média foi de 26 anos, sendo 58 homens e 57 mulheres. Tempo médio de duração da doença otológica de 12,4 anos. Limiar auditivo médio foi de 40 dB na orelha com OMCS e 22dB na orelha normal (P=0,002). Observou-se colesteatoma em 78 dos 115 casos. Na orelha com OMCS, ocorreram 15 (13 por cento) casos de PASN, sendo 7 associadas à colesteatoma e 8 não associadas. Seis casos de PASN foram severa/profunda, correlacionando-se com idade ajustada (P=0,003), ausência de colesteatoma (P=0,01), mas não com duração da doença (P=0,458). CONCLUSÃO: PASN ocorreu em 13 por cento dos pacientes com OMCS, correlacionando-se com o aumento da idade, mas não com a presença de colesteatoma ou com maior duração da doença otológica.

Sensorineural hearing loss (SNHL) related to chronic suppurative otitis media (CSOM) was studied to clarify the involvement of cholesteatomas in this context. AIM: to evaluate SNHL related to CSOM and its association with cholesteatomas, disease duration and patients' ages. METHODS: Retrospective analysis of 115 patients with CSOM with and without cholesteatoma submitted to surgical treatment. Inclusion criteria were active unilateral disease, normal contralateral ear and age below 60 years. RESULTS: The average age was 26.3 years, 58 males and 57 females. The duration of ear disease was, in average, 12.4 years. The average threshold of hearing was 40 dB in CSOM ear and 22 dB in the normal contralateral ear (P=0.002). CSOM with cholesteatoma occurred in 78 of 115 cases. In the abnormal ear, SNHL was seen in 15 cases, being 6 cases of profound loss, that correlated with adjusted-age (P=0.003) and absence of cholesteatoma (P=0.01), but not with disease duration (P=0.458). CONCLUSION: SNHL occurred in 13 percent of the patients with CSOM, and was correlated with older age, but not with the presence of cholesteatoma or longer duration of ear disease.

Questing one Brazilian query: reporting 16 cases of Q fever from Minas Gerais, Brazil

A febre Q continua sendo considerada inexistente no Brasil onde publicações de casos clínicos ainda não são encontráveis. Esta série de casos de 16 pacientes é resultado de uma busca sistemática para esta doença usando-se critérios clínicos e sorológicos. Os testes sorológicos foram realizados pela técnica de microimunofluorescência indireta utilizando-se antígenos de C. burnetii fase I e fase II. Síndrome influenza símile foi a forma clínica mais frequente (oito casos - 50%), seguida pela pneumonia, FOI (febre de origem indeterminada), síndrome mononucleose símile (dois casos - 12,5% cada) e por fim linfoadenite (um caso - 6,3%) e espondilodiscite associada à osteomielite (um caso - 6,3%). As idades variaram de quatro a 67 anos com mediana de 43,5. Todos os pacientes, com exceção de um, tinham testes sorológicos positivos para IgG anti fase II, associado ou não a IgM anti fase II, compatíveis com infecção aguda. Um paciente tinha tanto anticorpos IgG anti fase I quanto anti fase II compatíveis com febre Q crônica. Soroconversão foi detectada em 10 pacientes. A despeito das conhecidas limitações do diagnóstico sorológico os casos aqui relatados devem encorajar os médicos brasileiros a incluir a febre Q como causa nativa de doença febril neste país a ser pesquisada.

Determinants of Human Immunodeficiency Virus (HIV) prevalence in homosexual and bisexual men screened for admission to a cohort study of HIV negatives in Belo Horizonte, Brazil: Project Horizonte

Project Horizonte, an open cohort of homosexual and bisexual human immunodeficiency virus (HIV-1) negative men, is a component of the AIDS Vaccine Program, in Belo Horizonte, Minas Gerais, Brazil. The objective of this study was to compare volunteers testing HIV positive at cohort entry with a sample of those who tested HIV negative in order to identify risk factors for prevalent HIV infection, in a population being screened for enrollment at Project Horizonte. A nested case-control study was conducted. HIV positive volunteers at entry (cases) were matched by age and admission date to three HIV negative controls each. Selected variables used for the current analysis included demographic factors, sexual behavior and other risk factors for HIV infection. During the study period (1994-2001), among the 621 volunteers screened, 61 tested positive for HIV. Cases were matched to 183 HIV negative control subjects. After adjustments, the main risk factors associated with HIV infection were unprotected sex with an occasional partners, OR = 3.7 (CI 95 percent 1.3-10.6), receptive anal intercourse with an occasional partner, OR = 2.8 (95 percent CI 0.9-8.9) and belonging to the negro racial group, OR = 3.4 (CI 95 percent 1.1-11.9). These variables were associated with an increase in the risk of HIV infection among men who have sex with men at the screening for admission to an open HIV negative cohort

Alteraçöes clínico-radiológicas pulmonares pós-tratamento na esquistossomose mansoni aguda e crônica / Clinical and radiological changes in acute and chronic Schistosomiasis mansoni after treatment

Em 28,8% dos pacientes com esquistossomose mansoni tratados com oxamniquine ocorrem alteraçöes radiológicas pulmonares caracterizadas por broncopneumonite (41%), pneumonite (35%), abaulamento do arco médio (17%) e congestäo pulmonar (7%). As alteraçöes säo transitórias, com início até 3 dias após a terapêutica, em 50,7% regredindo em 15 dias, completa e espontaneamente. Predominam na faixa etária entre os 4 aos 12 anos, näo dependem, de padräo radiológico pré-tratamento, cor, sexo, naturalidade ou fase/forma da doença. As alteraçöes clínicas associadas às anormalidades radiológicas pós-tratamento säo inexpressivas na forma aguda, toxêmica, enquanto na fase crônica surgem como estertores crepitantes e roncos. O encontro de eosinófilos no escarro até o décimo segundo dia após o tratamento correlaciona-se com o encontro de alteraçöes radiológicas pulmonares pós-tratamento independentemente da fase/forma da doença