Three classess of tests are now recommended in the latest consolidated guideles on tests for tuberculosis infection. It includes for the first-time a new class of Mycobacterium tuberculosis antigen-based skin tests (TBSTs), and the two existing classes of tests: the tuberculin skin ...ribute-to-highlight medbox">test (TST) and the interferon-gamma release assays (IGRAs).
IGRAs and TBSTs use Mycobacterium tuberculosis complex specific antigens and represent a significant advancement to TST which has been used for over half a century.
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The social impacts of Covid-19 in Brazil: vulnerable populations and responses to the pandemic
Passados os primeiros meses da pandemia do novo coronavírus no Brasil, o Observatório Covid-19 Fiocruz, em parceria com a Editora Fiocruz e com o apoio da Rede SciELO Livros, traz para o público leitor... um conjunto de livros instantâneos sobre as análises nele realizadas desde que foi criado para subsidiar o seu combate. Nesta série Informação para Ação na Covid-19 será apresentado um balanço do conjunto de documentos (notas e relatórios técnicos, boletins, ensaios, informes, recomendações, ensaios, artigos, entre outros) produzidos em resposta à pandemia. Cada volume da série se estrutura em torno de um tema: aspectos globais da pandemia e da diplomacia em saúde; cenários epidemiológicos e vigilância em saúde; as políticas e a gestão dos serviços e sistemas de saúde; orientações para os cuidados e a saúde dos trabalhadores da saúde; impactos sociais e desigualdades sociais na pandemia. Com a publicação destes estudos em livros instantâneos e de acesso aberto colocamos à disposição do público o conjunto de informações e conhecimentos gerados no âmbito do Observatório Covid-19 Fiocruz, realizamos um balanço e uma reflexão sobre como chegamos ao cenário atual e apontamos caminhos para um futuro próximo. E, ao mesmo tempo, mantemos o registro histórico desse conhecimento produzido a quente, no calor da hora.
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Ce manuel donne une vue d’ensemble des connaissances scientifiques actuelles sur l’infection à VIH ainsi que des technologies et des outils utilisés pour prévenir cette infection, pour améliorer la qualité de vie des personnes infectées et... pour réduire les effets du VIH sur les enfants et leur famille. Le manuel présente aussi les stratégies nécessaires pour atteindre les personnes ayant besoin de ces interventions et définit leurs normes.
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Ce programme vous aidera, vous et votre communauté, à comprendre la science du virus qui cause le COVID-19 et d'autres virus similaires. Il vous aidera à comprendre comment ce virus vous affecte ou pourrait vous affecter à l'avenir. Elle vous aidera à comprendre les mesures que vous pouvez pren...dre pour assurer votre sécurité et celle de votre communauté.
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6 July 2021. The “WHO consolidated guidelines on tuberculosis. Module 3: Diagnosis - Rapid diagnostics for tuberculosis detection 2021 update” is the latest document replacing the one issued in 2020. Three new nucleic acid amplification test (NA...AT) classes are endorsed by WHO and included in the latest consolidated guideline
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This report investigates the impact of potential misclassification of samples on HIV prevalence estimates for 23 surveys conducted from 2010-2014. In addition to visual inspection of laboratory results, we examined how accounting for potential misclassification of HIV status through Bayesian latent ...class models affected the prevalence estimates. Two types of Bayesian models were specified: a model that only uses the individual dichotomous test results and a continuous model that uses the quantitative information of the EIA (i.e., the signal-to-cutoff values). Overall, we found that adjusted prevalence estimates matched the surveys’ original results, with overlapping uncertainty intervals. This suggested that misclassification of HIV status should not affect the prevalence estimates in most surveys. However, our analyses suggested that two surveys may be problematic. The prevalence could have been overestimated in the Uganda AIDS Indicator Survey 2011 and the Zambia Demographic and Health Survey 2013-14, although the magnitude of overestimation remains difficult to ascertain. Interpreting results from the Uganda survey is difficult because of the lack of internal quality control and potential violation of the multivariate normality assumption of the continuous Bayesian latent class model. In conclusion, despite the limitations of our latent class models, our analyses suggest that prevalence estimates from most of the surveys reviewed are not affected by sample misclassification.
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23 March 2021
The meeting addressed the last key area, that is, determining the best method or combination of diagnostic methods for a control programme for S. stercoralis infections in humans.
Dr Montresor’s presentation highlighted that while there is currently no “gold standard” for the... diagnosis of S. stercoralis, there is a felt urgency to optimize diagnostic regimens that are currently available, and in the context of population-based testing (as opposed to individual focused diagnostics in clinical settings).
In other words, the diagnostic test(s) should have good accuracy, but we should remember that in public health we do not aim at individual diagnosis: rather, we need a tool that should help to estimate the prevalence in a population.
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Journal of Infectious Diseases and Therapeutics, 2013, 1, 17-24
Hendra virus (HeV) continues to pose a serious public health concern as spillover events occur sporadically. Terminally ill horses can exhibit a range of clinical signs including frothy nasal discharge, ataxia or forebrain signs. Early signs, if detected, can include depression, inappetence, colic o...r mild respiratory signs. All unvaccinated ill horses in areas where flying foxes exist, may potentially be infected with HeV, posing a significant risk to the veterinary community. Equivac® HeV vaccine has been fully registered in Australia since 2015 (and under an Australian Pesticides and Veterinary Medicines Authority special permit since 2012) for immunization of horses against HeV and is the most effective and direct solution to prevent disease transmission to horses and protect humans. No HeV vaccinated horse has tested positive for HeV infection. There is no registered vaccine to prevent, or therapeutics to treat, HeV infection in humans. Previous equine HeV outbreaks tended to cluster in winter overlapping with the foaling season (August to December), when veterinarians and horse owners have frequent close contact with horses and their bodily fluids, increasing the chance of zoonotic disease transmission. The most southerly case was detected in 2019 in the Upper Hunter region in New South Wales, which is Australia's Thoroughbred horse breeding capital. Future spillover events are predicted to move further south and inland in Queensland and New South Wales, aligning with the moving distribution of the main reservoir hosts. Here we (1) review HeV epidemiology and climate change predicted infection dynamics, (2) present a biosecurity protocol for veterinary clinics and hospitals to adopt, and (3) describe diagnostic tests currently available and those under development. Major knowledge and research gaps have been identified, including evaluation of vaccine efficacy in foals to assess current vaccination protocol recommendations.
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A comic book guide for young people on how to live happily and healthily with HIV in their lives. In this booklet, young people share their stories about living with HIV and staying healthy in Namibia today. You will find out everything you need to know about living happily and healthily with HIV. I...t is possible for young people to have exciting and fulfilling lives, even if they are HIV-positive.
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This document focuses on making recommendations for the diagnosis and treatment of Chagas disease, an infection caused by Trypanosoma cruzi, the protozoan agent of a systemic parasitic disease. Methodology: These clinical practice guidelines were prepared following the WHO handbook for guideline dev...elopment (5). A multidisciplinary development group was formed, comprised of thematic experts, epidemiologists, methodologists, and users. Since there were no existing guidelines that could be adapted, the guidelines were developed from scratch.
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Working document from an informal consultation of experts. A Protocol for risk assessment at the field level. The purpose of document is to provide guidance on the methodology to be used for assessing, at field level, the yellow fever virus circulation in areas at risk, and is primarily intended fo...r public health specialists
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This manual describes some of the strategic, managerial, financial, technical and scientific aspects to be considered in establishing a national EQA programme for clinical laboratories and other testing services at all health care levels
ECDC Technical Report
In line with ECDC’s recommendations provided in the ’Risk Assessment of HTLV-1/2 transmission by tissue/cell transplantation’ dated 14 March 2012, this Directive replaces the term ‘incidence’ with ‘prevalence’ in the description of endemic areas of HTLV-1/2 i...nfection. According to the new requirements ‘HTLV-1 antibody testing must be performed for donors living in, or originating from high-prevalence areas or with sexual partners originating from those areas or where the donor’s parents originate from those areas’ and this applies to both donors of non-reproductive tissues and cells and reproductive cells.
ECDC contracted experts from the Institut Pasteur in Paris to systematically review the published evidence on the distribution of HTLV-1 infection prevalence throughout the world and to identify high-prevalence countries and areas.
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