Given an increase in outbreaks caused by resistant microorganisms associated with medical tourism, the Pan American Health Organization / World Health Organization (PAHO/WHO) encourages Member States to strengthen their capacity to detect and manage infections caused by resis...tant microorganismsin patients who traveled outside of their country of residence to receive healthcare. Furthermore, PAHO/WHO stresses the importance to implement preventive measures to reduce healthcare-associated infections at all levels of the health system.
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1. What is COVID-19?
2. Who is at most risk for COVID-19?
3. What is the risk of COVID-19 infection in humans in South Africa?
4. How is COVID-19 transmitted?
5. What are the signs and symptoms of COVID-19 infection in humans?
6. How is COVID-19 diagnosed?
7. How is COVID-19 infection ...treated?
8. How can COVID-19 infection in humans be prevented?
9. What measures have been put in place in South Africa to minimise the risk of transmission should cases be imported?
10. Should I travel now?
11. Who can I contact for more information?
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China is one of the major countries for the production and use of antibacterial agents. Antibacterial agents are widely used in healthcare and animal husbandry. It plays a significant role in treating infections and saving patient lives, preventing and treating animal diseases, improving farming ef...ficiency, and guaranteeing public health security. However, antimicrobial resistance has become increasingly prominent due to insufficient research and development capacity of new antimicrobials, sales of antimicrobials without prescriptions in pharmacies, irrational use of antibacterial agents in medical and food animal sectors, non-compliant waste emissions of pharmaceutical enterprises, as well as lack of public awareness toward rational use of antimicrobials. Bacterial resistance ultimately affects human health, but the cause of bacterial resistance and consequences are beyond the health sector. Antimicrobial resistance brings increasing biosecurity threats, worsens environmental pollution, constrains economic development and other adverse effects to human society, thus, there is an urgent need to strengthen multi-sectoral and multi-domain collaborative planning to jointly cope with this issue.
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A new respiratory infectious disease, COVID-19, caused by a new coronavirus called SARS-CoV-2, emerged in early December 2019. Since then, the virus has spread to India and 106 other countries in Asia, Europe, North America, Africa, and Oceania. On March 11, the World Health Organization (WHO) decl...ared the outbreak a pandemic, which has since rapidly evolved. As an economic hub with substantial global connectivity and movement of people and goods, India is directly impacted by the COVID-19 pandemic. Although it is too early to gauge the full spectrum of the outbreak’s social and economic impacts, COVID-19 has already caused lockdowns in China, Korea, and in many countries in Europe, and in some states of India, suspension of schools and universities, disruption of food systems and other supply chains, as well as a slowdown in trade between India and rest of the world.
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Научная справка
8 апреля 2020 г.
В ответ на растущую пандемию COVID-19 и нехватку ресурсов и реагентов для молекулярного тестирования, многие производители диагностич...ских тестов разработали и начали продавать простые в использовании экспресс-системы, позволяющие выполнять тестирование вне лабораторий. Эти простые тестовые наборы основаны либо на обнаружении белков вируса COVID-19 в респираторных образцах (например, мокроте, мазке из зева), либо на обнаружении в крови или сыворотке человека антител, образующихся в ответ на инфекцию.
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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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Emerg Infect Dis. 2020 Jul [date cited]. https://doi.org/10.3201/eid2607.200915
Infection control instructions call for use of alcohol-based hand rub solutions to inactivate severe acute respiratory syndrome coronavirus 2. We determined the virucidal activity of World Health Organization–recommen...ded hand rub formulations, at full strength and multiple dilutions, and of the active ingredients. All disinfectants demonstrated efficient virus inactivation.
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Este documento apresenta uma orientação provisória aos laboratórios e diferentes atores envolvidos na realização de exames laboratoriais para o vírus COVID-19. Ele baseia-se parcialmente na orientação provisória para os exames laboratoriais do coronavírus da Síndrome Respiratória do Ori...ente Médio (MERS).1-6 As informações sobre a infecção em humanos pelo vírus COVID-19 estão evoluindo e a OMS continua a monitorar os acontecimentos e revisar as recomendações conforme necessário. Este documento será revisado conforme novas informações forem disponibilizadas.
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This document updates the earlier version published in April 2020. In recent weeks, information on the potential use of chloroquine or hydroxychloroquine for the treatment of people with COVID-19 has been disseminated in academic journals and public media. Although there are now ongoing clinical tri...als testing the efficacy and safety of several medicines for COVID-19, as of the date of this document, there is a lack of quality evidence to demonstrate chloroquine and/or hydroxychloroquine are effective in the treatment of COVID-19. Evidence is recently emerging via small studies with sub-optimal methodologies that are conflicting.
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The speed of developing diagnostics for SARS-CoV-2, the causative agent of coronavirus disease 2019 (COVID-19), has been quite remarkable. Diagnostics have focused on nucleic acid amplification testing (NAAT) to identify infected individuals in acute-phase disease for timely implementation of mitiga...tion strategies and case management. More and more immunodiagnostics, mostly rapid diagnostic tests, are being made available as an alternative to NAATs. This type of test can be used out-of-laboratory conditions at large scale.
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A total of 18 laboratories from 13 countries participated in the four rounds of EQA: 10 laboratories from eight African endemic countries, four of which participated in all four rounds and three in three rounds. The overall results showed that the median performance of these laboratories improved ov...er the four rounds. However, the proportion of laboratories reporting false–positive cases remains high and indicates a problem of specificity probably due to contamination. The proportion of laboratories reporting both false–positive and false–negative results raises the issue of the quality of the data reported by WHO in Africa as well as the results of the studies carried out in these different laboratories in various countries.
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22 July 2022. This document summarizes current WHO guidance for public health surveillance of coronavirus disease 2019 (COVID-19) in humans caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
El presente informe regional sobre la situación de la tuberculosis en las Américas contiene la información correspondiente al 2019, provista por los países de la Región a través del sistema de recolección de datos de TB de la OMS. Esta información ha sido consolidada y analizada a nivel regi...onal. Su objetivo, además de presentar la situación epidemiológica y programática de la TB en las Américas, es sensibilizar, motivar e incentivar a todas las partes involucradas en la prevención y el control de esta enfermedad, para acelerar los esfuerzos hacia su eliminación en la Región y alcanzar las metas de la Estrategia Fin de la TB. En el informe se consignan los logros, pero también las brechas en el trabajo que se realiza en aspectos de diagnóstico, tratamiento, comorbilidades, poblaciones vulnerables, factores de riesgo y financiación, entre otros asuntos. A partir de la información presentada, se brindan unas recomendaciones concretas para seguir avanzando.
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV‑2) causing coronavirus disease 2019 (COVID-19) has reached pandemic levels;
Patients with cardiovascular (CV) risk factors and established cardiovascular disease (CVD) represent a vulnerable population when suffering from COVID-19;
Patien...ts with cardiac injury in the context of COVID-19 have an increased risk of morbidity and mortality
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The WHO Guidelines on physical activity and sedentary behaviour provide evidence-based public health recommendations for children, adolescents, adults and older adults on the amount of physical activity (frequency, intensity and duration) required to offer significant health benefits and mitigate he...alth risks. For the first time, recommendations are provided on the associations between sedentary behaviour and health outcomes, as well as for subpopulations, such as pregnant and postpartum women, and people living with chronic conditions or disability.
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16 Dec. 2020
This document provides guidance to Ministries of Health (MOHs), laboratory personnel and implementing partners in African Union Member States on the application of rapid antigen tests to COVID-19 testing. The guidance serves as reference for policymakers, laboratory leads, implementing... partners, and experts on use case scenarios and associated testing algorithms for COVID-19 antigen tests. It recommends the use of antigen tests to increase access to testing and enable timely results for persons with or without symptoms in specific settings. The document will be reviewed and updated as more evidence becomes available regarding the use of rapid antigen tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from global studies and evaluation efforts.
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Available in English, French, Spanish, Chinese, Russian and Arabic
https://apps.who.int/iris/handle/10665/337832