In the Region of the Americas, the leishmaniases are a group of diseases caused by various species of Leishmania, which cause a set of clinical syndromes in infected humans that can involve the skin, mucosa, and visceral organs. The spectrum of clinical disease is varied and depends on the interacti...on of several factors related to the parasite, the vector, and the host. Cutaneous leishmaniasis is the form most frequently reported in the Region and nearly 90% of cases present single or multiple localized lesions. Other cutaneous clinical forms, such as disseminated and diffuse cutaneous leishmaniasis, are more difficult to treat and relapses are common. The mucosal form is serious because it can cause disfigurement and severe disability if not diagnosed and treated early on. Visceral leishmaniasis is the most severe form, as it can cause death in up to 90% of untreated people.
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Nature Medicine, https://doi.org/10.1038/s41591-021-01283-z
This document aims to describe a minimum set of surveillance activities recommended at the national level to detect and monitor the relative prevalence of SARS-CoV-2 variants and outline a set of activities for the characterization and assessment of risk posed by these variants. A set of indicators ...is also provided to standardize monitoring and public reporting of variant circulation.
The document is primarily intended for national and sub-national public health authorities and partners who support implementation of surveillance for SARS-CoV-2 variants
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Il nuovo mini-textbook
Nei prossimi mesi, COVID Reference presenterà aggiornamenti regolari e racconterà i dati scientifici nel modo più completo possibile.
orientations provisoires, 25 juin 2021. Des tests de diagnostic rapides et précis sont un outil essentiel pour prévenir et contrôler la propagation du COVID-19. Ce document décrit les recommandations relatives aux stratégies nationales de dépistage et à l'utilisation de la PCR et des tests an...tigéniques rapides dans différents scénarios de transmission de l'épidémie de COVID-19, y compris la manière dont les tests pourraient être rationalisés dans les milieux à faibles ressources. Tous les tests doivent être suivis d'une réponse de santé publique forte, comprenant l'isolement des personnes dont le test est positif et la fourniture de soins, la recherche des contacts et la mise en quarantaine des contacts.
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Practical Approach to Care Kit
Kit de Cuidados em Atenção Primária
Guia de manejo clínico da COVID 19 para Atenção Primária
O PACK Brasil é uma parceria entre a Unidade de Tradução do Conhecimento (KTU), Secretaria Municipal de Saúde de Florianópolis/SC, BMJ e Fundação ProAR. A Fund...ação ProAR é a líder oficial das atividades do PACK no Brasil. Mais informações sobre a ProAR podem ser encontradas em: www.fundacaoproar.org.br
O PACK foi adaptado, traduzido, implementado e avaliado em serviços de atenção primária brasileiros entre 2015 e 2017. Um ensaio clínico randomizado concluiu que o PACK qualificou o atendimento clínico de pacientes adultos com doenças respiratórias crônicas na atenção primária e apoiou o compartilhamento do cuidado entre médicos e enfermeiros. Desde então, foi revisado anualmente, estando alinhado com as políticas públicas locais. Em 2021, foi desenvolvido conteúdos adicionais sobre o manejo da COVID-19.
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6 July 2021. Three new nucleic acid amplification test (NAAT) classes are endorsed by WHO and included.
The latest operational handbook includes the new classes recommended by WHO. It aims at facilitating the implementation of the WHO recommendations by the Member States, technical partners, and ot...hers involved in managing patients with TB and DR-TB. The operational handbook provides practical information on existing and new tests recommended by WHO, step-by-step advice on implementing and scale-up testing to achieve local and national impact and lastly, model diagnostic algorithms, which are updated to incorporate the latest recommendations. An overview of budgetary considerations and information sheets on each of the newly recommended tests is provided.
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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 (NAAT) classes are endorsed by WHO and included in the... latest consolidated guideline
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Interium guidance, 25 June 2021Timely and accurate diagnostic testing is an essential tool in preventing and controlling the spread of COVID-19. This document describes recommendations for national testing strategies and the use of PCR and rapid antigen tests in different transmission scenarios of t...he COVID-19 outbreak, including how testing might be rationalized in low resource settings. All testing should be followed by a strong public health response including isolating those who test positive and providing them care, contact tracing and quarantine of contacts.
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The WHO COVID-19 LENS (Living Evidence Synthesis) working group consolidated available evidence, based on rapid reviews of the literature and results of a living systematic review on pregnancy and COVID-19 (up to October 7, 2020), on potential mechanisms of vertical transmission of infectious pathog...ens, feasibility of vertical transmission of SARS-CoV-2, data related to interpretation of positive SARS-CoV-2 virologic and serologic neonatal tests, lessons from diagnosis of other congenital infections, and existing proposed definitions to classify timing of vertical transmission of SARS-CoV-2.
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13 May 2021
To avoid a reversal of progress from the adverse impacts of the COVID-19 pandemic, new knowledge and lessons from successful programmatic innovations are urgently needed to improve TB prevention and care. Experience can provide evidence for innovative approaches and strategies to mainta...in and scale up high-quality TB services. WHO therefore called for case studies on programmatic innovations that address emerging challenges in TB prevention and care during the pandemic in order to collect and disseminate the findings to the TB community. Between November 2020 and February 2021, a total of 23 case studies relevant to the call were accepted from 19 countries in the six regions of WHO. The lessons learnt from these country activities to ensure the continuity of essential services like TB care in the face of the crippling crisis may also inform strategies for minimizing the impact of future emerging pathogens on health services.
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Many critical questions remain about the effectiveness of COVID-19 vaccines in real-world settings. These questions can only be answered in post-introduction vaccine effectiveness studies.This guidance document outlines an approach to leverage existing surveillance systems for Severe Acute Respirato...ry Infection (SARI) to estimate COVID-19 vaccine effectiveness (VE) in preventing SARI associated with laboratory-confirmed SARS-CoV-2 using existing SARI surveillance systems. The approach uses the test-negative design to evaluate VE; cases are SARI patients who tested positive for SARS-CoV-2, and controls are SARI patients who tested negative for SARS-CoV-2.
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COVID-19 infection affects all age groups including newborns, however, literature is scarce on the fetal and neonatal outcomes of babies exposed in-utero, especially in Africa. The objectiveof this study was to document the perinatal outcomes of COVID-19 pregnancies and del...iveries that occurredduring the pandemic in Nigeria.
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orientaciones provisionales, 8 de noviembre de 2020
This interim guidance is most useful for countries interested in monitoring relative circulations of influenza and SARS-CoV-2 viruses. The document provides practical information to maintain surveillance of influenza and monitor SARS-CoV-2 using e...xisting surveillance systems. It contains updated considerations for addressing disruptions in the influenza sentinel surveillance and extending to include COVID-19 wherever possible. Updated algorithms for testing of both influenza and SARS-CoV-2 for surveillance are also included. This document is an update of Operational considerations for COVID-19 surveillance using GISRS and GISRS for the upcoming influenza seasons during the COVID-19 pandemic
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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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