Los coronavirus son un grupo de virus ARN altamente diversos de la familia Coronaviridae que se dividen en
4 géneros: alfa, beta, gamma y delta, y que causan enfermedades de leves a graves en humanos y animales
(1-3). Existen coronavirus humanos endémicos como los alfacoronavirus 229E y NL63 y l...os betacoronavirus
OC43 y HKU1 que pueden causar enfermedades de tipo influenza o neumonía en humanos. Sin embargo,
tres betacoronavirus zoonóticos que pueden causar enfermedad severa en humanos han emergido: el
coronavirus del Síndrome respiratorio agudo grave (SARS-CoV), el coronavirus del Síndrome respiratorio de
Oriente Medio (MERS-CoV) y el virus de COVID-19 (SARS-CoV-2).
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En la reunión de alto nivel de las Naciones Unidas del 2018 se fijó el objetivo de tratar al menos a 40 millones de personas con tuberculosis (TB) entre el 2018 y el 2022; sin embargo, en el 2021 ese objetivo solo se había cumplido en un 66%. Las pruebas ...">diagnósticas son fundamentales para lograr el objetivo, pero constituyen un eslabón débil en la continuidad de la atención. Las pruebas de diagnóstico rápido recomendadas por la Organización Mundial de la Salud (PDRO) son sumamente precisas, acortan el tiempo hasta el inicio del tratamiento, influyen en resultados importantes para el paciente y son costo-eficaces. Aunque el objetivo para el año 2025 es que todos los pacientes notificados se hagan inicialmente una PDRO, en el 2021 tan solo el 38% se hizo una PDRO como prueba inicial, y se determinó que el acceso a las pruebas diagnósticas era un problema crítico. Una de las principales consecuencias del uso insuficiente de las PDRO es la gran brecha en la detección de la farmacorresistencia. La presente Norma de la OMS: Acceso universal a las pruebas de diagnóstico rápido de la tuberculosis se basa en las directrices de la OMS y en el manual operativo conexo
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This WHO information note provides an updated list of recommended criteria for selecting RDTs for malaria, and highlights the performance of RDTs evaluated by the WHO malaria RDT product testing programme. It also provides an overview of additional considerations in the procurement of rapid tests.
Antimicrobial Resistance and Infection Control 2014,3 :31
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 ant...igen tests in different transmission scenarios of the 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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A partir de que el SARS-CoV-2 se detectó en China en diciembre de 2019, la COVID-19 se ha convertido rápidamente
en una pandemia. Los pacientes con COVID-19 presentan síntomas respiratorios inespecíficos de intensidad variable y
en ocasiones se les debe prestar ventilación asistida avanzada. ...Actualmente, el diagnóstico de COVID-19 se confirma
mediante la realización de pruebas analíticas, a saber, la determinación de ARN vírico a través de la reacción en
cadena de la polimerasa con retrotranscriptasa (RT PCR).
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Orientação provisória 25 de junho de 2021
Recommendations for national testing strategies for SARS-CoV-2 and diagnostic capabilities
Tercera versión, 1 de febrero del 2022. Estas orientaciones tienen por objetivo contribuir a que los sistemas de salud prioricen los medicamentos esenciales que deben estar disponibles y ser asequibles para manejar los pacientes en las unidades de cuidado intensivos durante las emergencias de salud.... Esta actualización incluye una sección sobre el tratamiento de pacientes graves o críticos, así como nuevos datos sobre la evidencia y la firmeza de las recomendaciones incluidas en versiones anteriores.
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24 marzo 2020
El objetivo de este documento es elaborar una lista de medicamentos esenciales para manejar los pacientes en unidades de cuidados intensivos con sospecha o diagnóstico confirmado de COVID -19. Incluye principios activos con su forma ...farmacéutica y concentración —preferentemente entre los recogidos en la Lista Modelo de Medicamentos Esenciales de la OMS (2019)—, con base en los cuadros clínicos y los síntomas identificados y priorizados en las guías de la OMS y de Surviving Sepsis Campaign y en las evidencias presentadas en dichas guías.
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List of essential medicines for the management of patients admitted in intensive care units with a suspected or confirmed diagnosis of COVID 19. Third version, 1 February 2022
In support of the London Declaration goals, PATH aims to catalyze engagement of the diagnostics industry and product development efforts. As part of this work, PATH conducted a diagnostic landscape ...analysis to identify gaps and evaluated current and nascent HAT diagnostics that may provide solutions.
We conducted literature reviews and interviews with key stakeholders to identify use cases for HAT diagnostics, understand current practices, and analyze progress toward more robust diagnostics across
different biomarkers.
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These guidelines provide updated evidence-based recommendations on the priority HCV-related topics from the 2018 WHO Guidelines for the care and treatment of persons diagnosed with chronic hepatitis C infection and the 2017 WHO Guidelines on hepatitis B and C testing. These priority areas are:
... direct-acting antiviral (DAA) treatment of adolescents and children ages ≥3 years of age
simplified HCV service delivery (decentralization, integration and task sharing)
HCV diagnostics – use of point-of-care (POC) HCV ribonucleic acid (RNA) assays and reflex HCV RNA testing.
These guidelines also update existing chapters without new recommendations, such as the inclusion of new manufacturers’ protocols on the use of dried blood spot (DBS) for HCV RNA testing and new data to inform the limit of detection for HCV RNA assays as a test of cure, in addition to their use for diagnosis.
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BMJ Open 2021;11:e042279. doi:10.1136/bmjopen-2020-042279. Neglected tropical diseases tend to cluster in the same poor populations, and to make progress with their control, they will have to be dealt with in an integrated manner. Peptide microarrays may be a solution to tese problems, where diagnos...is for co-infection can be detected simultaneously using the one tool.
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Annex to Selection and use of Ebola in vitro diagnostic assays
Qualitative assay for use on the cobas®6800/8800 Systems. For in vitro diagnostic use
Interim guidance, 6 October 2021
Direct detection of SARS-CoV-2 viral proteins (antigens) in nasal swabs and other respiratory secretions using lateral flow immunoassays (also known as rapid diagnostic tests, RDTs) offers a faster and less expensiv...e method to test for SARS-CoV-2 than the reference method, nucleic acid amplification tests (NAATs). This interim guidance offers recommendations on the priority uses of antigen-detecting rapid diagnostic tests (Ag-RDTs) in specific populations and settings, including (i) for primary case detection in symptomatic individuals suspected to be infected and asymptomatic individuals at high risk of COVID-19, (ii) for contact tracing, (iii) during outbreak investigations and (iv) to monitor trends of disease incidence in communities. Ag-RDTs meeting minimum performance requirements can be used outside of clinical and laboratory settings, including in communities, by trained operators in accordance with instructions. The guidance additionally provides recommendations on implementation, product selection and storage.
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A manual for health care providers.
This manual provides expert guidance on the laboratory techniques and procedures used in the diagnosis of Buruli ulcer, a disease caused by Mycobacterium ulcerans. Aimed at laboratory technicians and scientists working on this disease, the manual details the exac...t procedures to follow when performing a range of diagnostic tests. Recommended procedures, intended for use throughout the health system, are presented at levels appropriate for peripheral, district and central services and in accordance with the varying resources, skills and equipment typically found in countries where Buruli ulcer is endemic.
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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 test...ing (NAAT) to identify infected individuals in acute-phase disease for timely implementation of mitigation 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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