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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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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19 March 2020
Technical documentation
The purpose of this document is to offer guidance to Member States on quarantine measures for individuals in the context of COVID-19. It is intended for those responsible for establishing local or national policy for quarantine of individuals, and adherence ...to infection prevention and control measures.
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Accessed: 02.05.2020
These consolidated guidelines provide recommendations for comprehensive prevention and case management strategies in Kenya
Scope of the Guidelines: Infection prevention and control Patient triage Emergency Medical Services Case management Laboratory testing algorithm
Target... Audience: Health care workers taking care of patients suspected or confirmed to have COVID-19
These guidelines combine both preventive and clinical management of the disease in Kenyan context. The protocol borrows various international recommendations including the World Health Organization, from experience of other countries such as China that has struggled with the outbreak for a longer time and from principles of virology and infectious disease management.
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Several countries have demonstrated that COVID-19 transmission from one person to another can be slowed or stopped. This document has been prepared based on the evidence currently available about Coronavirus disease 2019 (COVID-19) transmission (human-to-human transmission primarily via respiratory... droplets from, or direct contact with, an infected person), and is designed to ensure that the accommodation sector can protect the health of its staff and clients.
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This document aims to help EU/EEA public health authorities in the tracing and management of persons, including healthcare workers, who had contact with COVID-19 cases. It outlines the key steps of contact tracing, including contact identification, listing and follow-up, in the context of the COVID-...19 response.
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How should humanitarian organisations prepare and respond to COVID-19 in humanitarian settings in low- and middle-income countries?
This Rapid Learning Review outlines 14 actions, insights and ideas for humanitarian actors to consider in their COVID-19 responses. It summarises and synthesises the... best available knowledge and guidance for developing a health response to COVID-19 in low- and middle-income settings as at April 2020
The paper, supported by the UN Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator Mark Lowcock, will be updated throughout 2020 to reflect emerging knowledge and evidence on the most effective approaches to respond to the COVID-19 Pandemic.
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Five months after the beginning of the desert locust upsurge in the Greater Horn of Africa and Yemen, and four months since the launch of the response plan (24 January 2020) a total of USD 130 million have been mobilized in the region.
As described in the recently published Food and Agriculture Org...anization of the United Nations (FAO) quarterly report (January to April 2020), a lot has been achieved already, thanks to generous contributions from resource partners and affected governments.
But bringing a desert locust upsurge under control and mitigating its impact on livelihoods and food security requires a prolonged effort and numerous factors could influence the duration and magnitude of the problem, including the widespread presence of COVID-19.
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Nested case-control study of health workers exposed to confirmed COVID-19 patients.
Similar objectives to the cohort study but case-control studies may be cheaper and provide robust evidence to characterize and assess the risk factors for SARS-CoV-2 infection in health workers exposed to COVID-19 p...atients.
Health workers with confirmed COVID-19 will be recruited as cases and other health workers in the same health care setting without infection will be recruited as controls (incidence density sampling).
Secondary objectives are similar to the cohort study.
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The WHO COVID-19 Clinical management: living guidance contains the Organization’s most up-to-date recommendations for the clinical management of people with COVID-19. Providing guidance that is comprehensive and holistic for the optimal care of COVID-19 patients throughout their entire illness is ...important. The latest version of this living guideline is available in pdf format (via the ‘Download’ button) and via an online platform, and is updated regularly as new evidence emerges. No further updates to the previous existing recommendations were made in this latest version.
This updated (fifth) version contains 16 new recommendations for the rehabilitation of adults with post COVID-19 condition (see Chapter 24)
This updated (fourth) version contains three new recommendations regarding hospitalized patients with severe or critical COVID-19
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This document aims to provide global guidance on poliomyelitis (polio) surveillance in the context of the COVID-19 pandemic. It comes as a technical complement to Polio eradication programme continuity, Immunization in the context of COVID-19 pandemic frequently asked questions, and is aligned with ...the Global Polio Eradication Initiative (GPEI) commitment to support the COVID-19 pandemic response.
It highlights the decision making framework to guide the level of polio surveillance activities at country level including; the measures to put in place to ensure a minimum level of polio surveillance in the field and in the laboratory, and the trigger to return to normal polio function.
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Policy Brief 2 June 2020
The COVID-19 pandemic is a health and human crisis threatening the food security and nutrition of millions of people around the world. Hundreds of millions of people were already suffering from hunger and malnutrition before the virus hit and, unless immediate action is tak...en, we could see a global food emergency. In the longer term, the combined effects of COVID-19 itself, as well as corresponding mitigation measures and the emerging global recession could, without large-scale coordinated action, disrupt the functioning of food systems. Such disruption can result in consequences for health and nutrition of a severity and scale unseen for more than half a century.
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Infection prevention and control (IPC) practices are of critical importance in protecting the function of healthcare services at all levels and mitigating the impact on vulnerable populations. Although the management of possible COVID-19 cases is usually guided by national policies for specific heal...thcare facilities, community transmission is currently widespread in most EU/EEA countries and the UK, therefore primary healthcare providers in the community such as GPs, dentists and pharmacists are at risk of being exposed to COVID-19.
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Scientific Brief, 17 June 2020
While much progress has been achieved over the past year, the Region of the Americas has stubbornly remained the epicenter of the COVID-19 pandemic. PAHO is launching its 2021 COVID-19 Response Strategy and Donor Appeal to continue supporting Latin American and Caribbean countries and territories i...n their fight against COVID-19. This document outlines PAHO’s regional strategy for the year 2021 to sustain and scale-up the response to COVID‑19 pandemic in the Americas, suppress the community transmission of the virus and mitigate the longer-term health impact of the pandemic.
US$ 239 million is needed to support critical response efforts in the Americas between 1 January and 31 December 2021
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Interim Guidance
This document is to help Member States build on actions taken during the COVID-19 pandemic to improve national medium- to long-term preparedness for future threats. It maps COVID-19 preparedness and response actions to the building of sustainable International Health Regulations (2...005) core capacities; locates relevant supporting WHO resources that are not specific to the pandemic; and advocates for the conscious and effective allocation of COVID-19 funds to also meet countries’ longer-term need
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May 2020 International Journal of Infectious Diseases 96 DOI: 10.1016/j.ijid.2020.05.003
Version 4
The purpose of these standard operating procedures (SOPs) is to offer policy guidance and to provide performance standards on how to respond to any type of poliovirus outbreak or event in a timely and effective manner, and specifically, to stop an outbrea...k within 120 days.
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