It is recommended that egg based quadrivalent vaccines for use in the 2019-2020 northern hemisphere influenza season contain the following:
an A/Brisbane/02/2018 (H1N1)pdm09-like virus;
an A(H3N2) virus to be announced on 21 March 2019*;
a B/Colorado/06/2017-like virus (B/Victoria/...2/87 lineage); and
a B/Phuket/3073/2013-like virus (B/Yamagata/16/88 lineage).
It is recommended that the influenza B virus component of trivalent vaccines for use in the 2019-2020 northern hemisphere influenza season be a B/Colorado/06/2017-like virus of the B/Victoria/2/87-lineage.
* In light of recent changes in the proportions of genetically and antigenically diverse A(H3N2) viruses, the recommendation for the A(H3N2) component has been postponed.
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Annex. This document is an update of a guidance published on 12 July 2021, after the review of new scientific evidence on transmission of SARS-CoV-2 variants of concern (VOC). It contains updated recommendations on the use of masks and respirators for health workers providing care to suspected or c...onfirmed COVID-19.
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6th edition 13 January 2021 CR 2021.6.10, uploaded on 27 May 2021
Find eight editions: Deutsch | English | Español | Français | Italiano | Português | Tiếng Việt | Türkçe
https://covidreference.com/download
Vertreter besorgniserregender Virusvarianten (variants of concern, kurz VOC) wurden weltweit aber auch in Europa, identifiziert. Molekularbiologische Details zu den Varianten sind unter SARS-CoV-2: Virologische Basisdaten und Virusvarianten abrufbar.
Available in English, French, Chinese, Arabic, Russian
8 February 2021
21 Dec 2021. Slideset updated regularly to include the latest data and guidance on COVID-19 vaccines, including implications of emerging SARS-CoV-2 variants
Why does WHO recommend at this time, in June 2021, that vaccinating children is not a priority? When would their vaccination be prioritized? How is safety of these vaccines ensured? WHO’s Chief Scientist Dr Soumya Swaminathan explains in Science in 5.
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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This document aims to describe a minimum set of surveillance activities recommended at the national level to detect and monitor the relative prevalence of SARS-CoV-2 variants and outline a set of activities for the characterization and assessment of risk posed by these variants. A set of indicators ...is also provided to standardize monitoring and public reporting of variant circulation.
The document is primarily intended for national and sub-national public health authorities and partners who support implementation of surveillance for SARS-CoV-2 variants
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This document aims to describe a minimum set of surveillance activities recommended at the national level to detect and monitor the relative prevalence of SARS-CoV-2 variants and outline a set of activities for the characterization and assessment of risk posed by these variants. A set of indicators ...is also provided to standardize monitoring and public reporting of variant circulation.
The document is primarily intended for national and sub-national public health authorities and partners who support implementation of surveillance for SARS-CoV-2 variants
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Orientations provisoires
9 août 2021
Le présent document vise à décrire un ensemble minimal d'activités de surveillance recommandées au niveau national pour détecter et surveiller la prévalence relative des variantes du SRAS-CoV-2 et à présenter un ensemble d'activités pour la caractér...isation et l'évaluation du risque que présentent ces variantes. k posés par ces variants. Un ensemble d'indicateurs est également fourni pour normaliser la surveillance et la déclaration publique de la circulation des variants.
Ce document est principalement destiné aux autorités de santé publique nationales et infranationales et aux partenaires qui soutiennent la mise en œuvre de la surveillance des variantes du SRAS-CoV-2.
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21 January 2022
The overall threat posed by Omicron largely depends on four key questions: (i) how transmissible the variant is; (ii) how well vaccines and prior infection protect against infection, transmission, clinical disease and death; (iii) how virulent the variant is compared to other varian...ts; and (iv) how populations understand these dynamics, perceive risk and follow control measures, including public health and social measures (PHSM).
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The Committee discussed the implications for preparedness for smallpox-like events reflected by the ongoing COVID-19 pandemic. The Committee noted how quickly diagnostics and vaccines could be developed and deployed when resources and political will were abundant. This rapidity was also due to the f...act that the genetic sequence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) had been shared worldwide. It was noted that in one country SARS-CoV-2 had been reconstructed in a laboratory from the viral genome sequence before the first case of COVID-19 had been reported, highlighting the benefits of synthetic biology technologies for accelerated development of diagnostics as well as the oft-described potential risks. Lessons learned about clinical care during the COVID-19 pandemic were also discussed.
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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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