Genomic sequencing has been an essential tool in generating virological data, driving the laboratory response, and better understanding the dispersal and evolutionary patterns of SARS-CoV-2. In addition to the characterization of the global circulation patterns, early detection of SARS-CoV-2 variant...s inside each country is critical to complement the epidemiological and virological surveillance
9 February 2021
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The growing understanding of how sequence information can contribute to improved public health is driving global investments in sequencing facilities and programmes. The falling cost and complexity of generating GSD provides opportunities for expanding sequencing capacity; however, challenges to wid...espread implementation remain. This document provides policy-makers and stakeholders with guidance on how to maximize the public health benefit of SARS-CoV-2 genomic sequencing activities in the short and long term as the pandemic continues to unfold. Practical considerations for the implementation of a virus genomic sequencing programme and an overview of the public health objectives of genomic sequencing are covered. This guidance focuses on SARS-CoV-2 but is applicable to other pathogens of public health concern.
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The growing understanding of how sequence information can contribute to improved public health is driving global investments in sequencing facilities and programmes. The falling cost and complexity of generating GSD provides opportunities for expanding sequencing capacity; however, challenges to wid...espread implementation remain. This document provides policy-makers and stakeholders with guidance on how to maximize the public health benefit of SARS-CoV-2 genomic sequencing activities in the short and long term as the pandemic continues to unfold. Practical considerations for the implementation of a virus genomic sequencing programme and an overview of the public health objectives of genomic sequencing are covered. This guidance focuses on SARS-CoV-2 but is applicable to other pathogens of public health concern.
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8 January 2021
Sequencing enabled the world to rapidly identify SARS-CoV-2 and develop diagnostic tests and other tools for outbreak management. Continued genome sequencing supports the monitoring of the disease’s spread and evolution of the virus. Accelerated integration of genome sequencing int...o the practices of the global health community is required if we want to be better prepared for the future threats. This document provides guidance for laboratories on maximizing the impact of SARS-CoV-2 sequencing now and other emerging pathogens in the future.
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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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The Strategy provides a high-level unifying framework to leverage existing capacities, address barriers and strengthen the use of genomic surveillance in the detection, monitoring and response to public health threats. Genomic surveillance is part of the broader surveillance and laboratory system, a...nd its implementation should reinforce end-to-end capacities including sample collection, diagnostics, data sharing and analysis. The strategy aims to facilitate the connectivity between different disease control programs and surveillance networks. This interoperability will strengthen the cross-cutting essential public health laboratory functions underpinning genomics holistically. The strategy articulates the overarching goal, objectives and strategic actions needed. These are dependent on commitments from countries, partners and WHO for their implementation.
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Au cours de la dernière décennie, les données de séquençage génétique des agents pathogènes ont gagné en importance et contribuent désormais de façon déterminante à la détection et à la maîtrise des flambées de maladies infectieuses, en facilitant la mise au point de ...produits de diagnostic, de médicaments et de vaccins et en guidant lesactivités de riposte aux flambées(1-11). L’émergence du nouveau coronavirus, par la suite désigné « coronavirus 2 du syndrome respiratoire aigu sévère » (SARS-CoV-2), a encore accentué l’importance des données de séquençage génétique.
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Whole-genome sequencing (WGS) provides a vast amount of information and the highest possible resolution for pathogen subtyping. The application of WGS for global surveillance can provide information on the early emergence and spread of AMR and further inform timely policy development on AMR control.... Sequencing data emanating from AMR surveillance may provide key information to guide the development of rapid diagnostic tools for better and more rapid characterization of AMR, and thus complement phenotypic methods. This document addresses the applications of WGS for AMR surveillance, including the benefits and limitations of current WGS technologies
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En el último decenio, los datos de las secuencias genéticas de los patógenos han adquirido un papel crucial en la detección y el manejo de los brotes de enfermedades infecciosas, contribuyendo al desarrollo de pruebas diagnósticas, medicamentos y vacunas y orientando la respuesta sanitaria.
Africa CDC Institute of Pathogen Genomics (IPG) was launched in November 2019 and operates under the Division of Laboratory Systems and Networks.
IPG coordinate the implementation of molecular diagnostics, pathogen genomics and bioinformatics in National Public Health Institutions (NPHIs) and/or Re...fe-
-rence Laboratories (NRLs) across Africa.
Africa CDC and APHF are coordinating a continental initiative to maximize the benefits of molecular approaches and pathogen genomics for more effective
outbreak preparedness, prevention, response, and for the control and elimination of endemic diseases in Africa. One of Africa CDC’s flagship initiative is the Africa
Pathogen Genomics Initiative (Africa PGI), a partnership that aims to strengthen laboratory systems and enhance genomic surveillance by equipping the continent’s
public health institutions with the tools, training, and data infrastructure.
About the Project
In 2023, 166 outbreaks and public health events were reported in Africa. This calls for a resilient laboratory systems for timely detection and reporting of current and future outbreaks. This project aims to scale up molecular diagnostic and genomic sequencing-based detection and characterization of outbreaks.
Africa CDC is working with Member States to develop guidance, diagnostic algorithm, training and capacity building to enable outbreak detection, and reporting to inform public health response.
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Sequencing SARS-CoV-2 in the Americas
The COVID-19 Genomic Surveillance Regional Network was created in 2020 not only to strengthen the sequencing capacity in the participating laboratories, but also for them to establish a routine SARS-CoV-2 genomic sequencing, as a strategy to increase the amoun...t of genetic sequence data available to the global community, which is critical to support the development of diagnostic protocols, the information for vaccine development and to better understand the evolution and molecular epidemiology of the SARS-CoV-2.
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Representative, quality, timely and continuous genetic surveillance of SARS-CoV-2 is critical to the COVID-19 outbreak response. This document provides practical guidance to Global Influenza Surveillance and Response System (GISRS) laboratories and other relevant national laboratories to move beyond... virus detection to genomic sequencing of SARS-CoV-2 PCR positive materials obtained from sentinel surveillance of influenza-like illness (ILI), acute respiratory infection (ARI) and severe acute respiratory infection (SARI). It contains considerations on sample selection for sequencing, numbers of viruses to be sequenced, metadata and timeliness for sharing genetic sequence data (GSD) and opportunities for technical support.
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WHO-2019-nCoV-genomic_sequencing
his guidance provides interim guidance for the integration of SARS-CoV-2 and influenza virologic and genomic surveillance, from sentinel site case enrolment and sampling to the eventual sharing of the virus sequence data, a process known as end-to-end surveillance. This guidance builds on experience...s and lessons learned as countries adapted their influenza surveillance systems in the context of the COVID-19 pandemic and reviews new evidence to provide guidance on end-to-end surveillance. The guidance includes new algorithms and strategies to adapt sentinel systems to make them resilient and agile for addressing global and national surveillance needs for influenza and COVID-19.covid-
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A COVID-19 virus mutation tracker system (CovMT; appendix) based on SARS-CoV-2 isolate genomes deposited to GISAID to track the worldwide sequencing efforts and the evolution of the mutational landscape of this virus. CovMT, which is updated daily, summarises mutations from more than 450 000 isola...tes into groups of generic virus clades, lineages, and more specific mutation sets we call mutation fingerprints.
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Die weltweite Ungleichheit bei der Verteilung von Einkommen und Vermögen weit jenseits dessen, was sich durch Unterschiede der Belastung oder Verantwortung durch die jeweilige Arbeitstätigkeit begründen ließe, stellt schon für sich genommen eine gewaltige Ungerechtigkeit dar. Sie steht auch in ...einem gefährlichen Gegensatz zu unverzichtbaren Grundwerten des gesellschaftlichen Zusammenlebens wie menschliche Solidarität und gleichberechtigte Beteiligung an der demokratischen Willensbildung. Noch bedrohlicher ist aber, dass sie die benachteiligten Menschen ihrer Lebenschancen beraubt. Einerseits werden diese gezwungen, extreme Risiken einzugehen, um ihre wirtschaftliche Existenz zu sichern oder brutaler Gewalt und Verfolgung zu entkommen. Andererseits reichen die verfügbaren Ressourcen nicht aus, um wenigstens lebensbewahrende Gesundheitsdienste bereitzustellen. Der Beitrag analysiert die Finanzierung der allgemeinen Gesundheitsversorgung in wirtschaftlich benachteiligten Ländern, die als wesentliche Voraussetzung für die Verwirklichung der Agenda 2030 gelten.
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Orientações para a vigilância em saúde, no que se refere aos aspectos epidemiológicos e laboratoriais da vigilância genômica da covid-19
This document aims to provide interim guidance for microbiology and virology experts, other laboratory professionals, laboratory managers, infectious disease programme managers, public health professionals and other stakeholders that provide primary, confirmatory or advanced testing for SARS-CoV-2, ...including genomic sequencing, or are involved in making decisions on establishing or scaling up capability and capacity to detect and characterize circulating SARS-CoV-2 variants.
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