Nota científica
24 de abril de 2020
El desarrollo de inmunidad a un patógeno por infección natural es un proceso de varias etapas que suele producirse a lo largo de una o dos semanas. El organismo responde a una infección vírica de forma inmediata a través de una respuesta innata no específ...ica, en la que los macrófagos, los neutrófilos y las células dendríticas frenan el avance del virus y pueden incluso evitar que este provoque síntomas. A esta respuesta no específica le sigue una respuesta adaptativa en la que el organismo genera anticuerpos que se unen específicamente al virus. Estos anticuerpos son las proteínas denominadas inmunoglobulinas. El organismo también genera linfocitos T que reconocen y eliminan las células infectadas por el virus: es lo que se conoce como inmunidad celular. Esta respuesta adaptativa combinada puede eliminar el virus del organismo y, si la respuesta es suficientemente intensa, puede evitar el agravamiento de la enfermedad o la reinfección por el mismo virus. Este proceso se mide a menudo a través de la presencia de anticuerpos en la sangre.
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The Africa Centres for Disease Control and Prevention (Africa CDC) was established in 2017, after the west Africa Ebola virus disease outbreak. Upon creation, the
role of Africa CDC was to mandate strengthening of the capacity of public health institutions in Africa to prevent, detect, and respond ...to disease threats, based on science, policy, and data-driven interventions and programmes, as envisaged by the Abuja Declaration. The inaugural strategic plan was focused on building health systems for emergency preparedness and response. However, from its inception, the organisation recognised the concomitant need to comprehensively strengthen systems to prevent and manage noncommunicable diseases (NCDs) and injuries, and to face the neglected issue of mental health disorders. The division dedicated to these issues was conceptualised, but operationalisation was deferred to a future date.
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The number of confirmed COVID-19 cases detected and reported in each country is influenced by
many factors including limited access and/or utilization of healthcare and COVID-19 testing, limited
surveillance, lack of knowledge amongst the population about when to seek testing, an asymptomatic pres...entation, and other unknown issues. This is true in all countries of the world, and not Africa specific, however there are factors unique to Africa which may also affect the way the virus behaves there. COVID-19 prevalence data are critical for planning effective mitigation strategies and understandingthe true impact of the disease and relevant intervention measures in Africa, which might be quite different from regions with a different population age distribution or risk factor profile.
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Key Considerations
This brief focuses on cross-border movement in Eastern and Southern Africa (ESA) and its implications for development of risk communication and community engagement (RCCE) strategies aimed at preventing transmission of COVID-19 in the ESA region. Given the extensive risk of cross...-border transmission of the virus and the imminent reopening of borders, such strategies are essential to containment efforts
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30/03/2020 (V1) 06/04/2020 (V2)
Selon l’Organisation Mondiale de la Santé (OMS), la COVID-19 est la maladie infectieuse causée par le dernier coronavirus qui a été découvert. Ce nouveau virus était inconnu avant l’apparition de la flambée à Wuhan en Chine en décembre 2019.
Pflegeheime und Krankenhäuser können Antigen-Schnelltests nutzen, um Personal, Besucher sowie Patienten und Bewohner regelmäßig auf das Corona-Virus zu testen. Außerdem können die Schnelltests nun auch in Schulen eingesetzt werden. Eine entsprechende Änderung der Medizinprodukte-Abgabeverordn...ung ist am 4. Dezember in Kraft getreten. Warum Antigentests eingesetzt werden sollen und weitere Fragen und Antworten, finden Sie hier
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Website last accessed on 31.03.2023
Le chikungunya a été identifié pour la première fois en Tanzanie en 1952. Depuis 2004, on constate une propagation rapide du virus du chikungunya, ce dernier ayant été détecté dans plus de 60 pays.
O currículo irá ajudá-lo, a si e à sua comunidade, a compreender a ciência do vírus que causa a COVID-19 e outros vírus como este. Ajudá-lo-á a descobrir como este vírus o está a afectar ou a afectar ou poderá vir a afectá-lo no futuro. Ajudá-lo-á a compreender as acções que pode to...mar para se manter a si e à sua comunidade em segurança.
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En este curso se suministra información sobre lo que deben hacer los establecimientos de salud con el fin de estar preparados para responder a un caso de infección por un nuevo virus respiratorio como el nuevo coronavirus, reconocer un caso cuando ocurre y aplicar adecuadamente las medidas de PCI ...a fin de que la infección no se transmita al personal de salud, otros pacientes ni otras personas en el establecimiento de salud.
Este curso de capacitación se dirige a los trabajadores de salud y los profesionales de salud pública, puesto que se centra en la prevención y el control de infecciones.
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Sudan recorded the first COVID-19 case on 13 March 2020 and, at the beginning of July, the Federal Ministry of Health had confirmed that nearly 10,000 people had contracted the virus, including over 600 who died from the disease across the country. Although more than 70 per cent of the confirmed cas...es are in the Khartoum area, COVID-19 has spread throughout the country, with the highest numbers recorded in the central and eastern states. With extremely low testing capacity — around 800 samples per day, the lowest in the region — the official figures of confirmed cases likely underestimate the extent of the pandemic and the actual situation is unknown.
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Alors que la Covid-19 se propage dans le monde entier, les spéculations et les fausses nouvelles se répandent également à grande vitesse. La DW démonte les mythes qui entourent le virus.
Interim Assessement Report
The EMA review was started by the Agency’s Committee for Medicinal Products for Human Use (CHMP) to support decision-making by health authorities. This first interim report includes information on seven experimental medicines intended for the treatment of people infecte...d with the Ebola virus:
BCX4430 (Biocryst);
Brincidofovir (Chimerix);
Favipiravir (Fujifilm Corporation/Toyama);
TKM-100802 (Tekmira);
AVI-7537 (Sarepta);
ZMapp (Leafbio Inc.);
Anti-Ebola F(ab’)2 (Fab’entech).
The amount of information available for the seven treatments is highly variable. For some compounds there is no data from use in human subjects available. A small number of treatments have been administered to patients in the current Ebola outbreak as compassionate use. Finally, there are also medicines included in this review that have already been studied in humans, albeit for the treatment of other viral diseases.
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Pathogen genomic surveillance has become a priority for public health systems in recent years. Genomic sequencing is increasingly being used to characterize pathogens and monitor important public health priorities (e.g. poliovirus, influenza virus, Mycobacterium tuberculosis and Vibrio cholerae, ant...imicrobial resistance (AMR)). The decrease in cost and time of sequencing and the exponential development of bioinformatic pipelines have played a critical role in integrating pathogen genomics into routine public health surveillance. The coronavirus disease 2019 (COVID-19) pandemic has highlighted the role that sequencing plays in the surveillance of infectious diseases. Sequencing facilitates earlier detection, more accurate investigation of outbreaks, closer real-time monitoring of pathogen evolution and tailored development and evaluation of interventions to inform local to global public health decision-making and action. However, there remains a need to coordinate efforts, leverage and link existing surveillance and laboratory networks and capabilities, and systematically integrate genetic sequence data (GSD) with clinical and epidemiological data to strengthen its utility.
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Dada a atual situação da pandemia da COVID-19, os países são orientados a continuar a adotar os algoritmos diagnósticos para tuberculose (TB) recomendados pela OPAS/OMS. Apesar das diferenças nos modos de transmissão da TB e do vírus responsável pela COVID-19, certas medidas de proteção p...essoal são relevantes para ambas as doenças. As medidas de rotina para a proteção contra a TB devem continuar, juntamente com precauções adicionais para proteger os trabalhadores contra a COVID-19.
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Cette note stratégique porte spécifiquement sur le Grand Nord : soit les territoires de Beni et de Lubero au nord du Nord-Kivu constituant l’épicentre de la flambée épidémiquee. D’autres enquêtes participatives doivent être menées auprès des populations touchées, mais étant donné l...actuelle transmission du virus, la priorité a été accordée à la communication des considérations clées et des recommandations immédiates.
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Document d’information scientifique
24 avril 2020
Le développement d’une immunité face à un agent pathogène à la suite d’une infection naturelle comporte plusieurs étapes et prend généralement une à deux semaines. Une infection virale entraîne immédiatement une réponse immunit...aire innée, non spécifique, au cours de laquelle les macrophages, les neutrophiles et les cellules dendritiques ralentissent la progression du virus et peuvent même éviter l’apparition de symptômes. Cette réponse non spécifique est suivie d’une réponse adaptative, au cours de laquelle l’organisme produit des anticorps qui se lient spécifiquement au virus. Ces anticorps sont des protéines appelées immunoglobulines. L’organisme produit également des lymphocytes T qui reconnaissent et éliminent les cellules infectées par le virus. Cette réponse adaptative permet parfois d’éliminer le virus de l’organisme et, si elle est suffisamment forte, d’éviter l’aggravation de la maladie ou la réinfection par le même virus. Ce processus est souvent mesuré par la présence d’anticorps dans le sang.
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The arrival of safe, effective COVID-19 vaccines is a major development in the coronavirus pandemic. An effective COVID-19 vaccine will help protect people who come in contact with the virus from becoming sick. As more people are vaccinated, families and communities will be able to gradually return ...to a more normal routine.
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This flipbook is for community health workers to use to educate their communities about Zika, how it is spread, the effects of the virus, what to do if infected, and how to prevent Zika.
Primary care can play a significant role in the COVID-19 response by differentiating patients with respiratory symptoms from those with COVID-19, making an early diagnosis, helping vulnerable people cope with their anxiety about the virus, and reducing the demand for hospital services. This document... provides national and subnational health managers, as well as staff at primary care facilities, with interim guidance on timely, effective and safe supportive management of patients with suspected and confirmed COVID-19 at the primary care level; and delivery of essential health services at the primary care level during the COVID-19 outbreak
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Open-resource literature hub known as LitCovid curates the most comprehensive collection of international research papers so far on the new coronavirus disease COVID-19 . LitCovid is updated daily with newly published articles. The aim is to provide timely insight from the scientific literature int...o the biology of the virus and the diagnosis and management of those who have been infected.
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