COVID Reference 23 May 2021
These WHO interim recommendations on the use of the Astra Zeneca – Oxford University AZD1222 vaccine against Covid-19 were developed on the basis of advice issued by the Strategic Advisory Group of Experts on Immunization (SAGE) and the evidence summary included in the background document referenc...ed below.
This document has been updated: Version 15 March 2022.
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10 May 2021. Manufactureres:
SK Bioscience Co. Ltd. [COVID-19 Vaccine (ChAdOx1-S [recombinant])]
Serum Institute of India Pvt. Ltd. [COVISHIELD™, ChAdOx1 nCoV-19 Corona Virus Vaccine (Recombinant)]
The ChAdOx1-S/nCoV-19 [recombinant] vaccine is a replication-deficient adenoviral vecto...r vaccine against coronavirus disease 2019 (COVID-19). The vaccine expresses the SARS-CoV-2 spike protein gene, which instructs the host cells to produce the protein of the S-antigen unique to SARS-CoV-2, allowing the body to generate an immune response and to retain that information in memory immune cells. Efficacy shown in clinical trials in participants who received the full series of vaccine (2 doses) irrespective of interval between the doses was 63.1%, based on a median follow-up of 80 days, but tended to be higher when this interval was longer. The data reviewed at this time support the conclusion that the known and potential benefits of ChAdOx1-S/nCoV-19 [recombinant] vaccine outweigh the known and potential risks.
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7 June 2021
The Africa Regulatory Taskforce is a joint effort established by the Africa Centres for Disease Control and Prevention (Africa CDC), the African Union Development Agency (AUDA-NEPAD) coordinated African Medicines Regulatory Harmonization (AMRH) Initiative, and the World Health Organisat...ion’s (WHO) African Vaccine Regulatory Forum (AVAREF) to enable and provide support for an effective regulatory framework for COVID-19 Vaccines in Africa.
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This article is part of a series of explainers on vaccine development and distribution. Learn more about vaccines – from how they work and how they’re made to ensuring safety and equitable access – in WHO’s Vaccines Explained series.
Vaccines are supported by decades of medical research. ...They work by preparing the body's own immune system to recognise and defend against a specific disease. The volume of information available about vaccination can be overwhelming, so it’s important to talk through the topic.
Available in different languages
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COVID Reference 23 May 2021
временное руководство. Первый выпуск: 10 февраля 2021 г. Обновлено: 21 апреля 2021 г. Последнее обновление 30 июля 2021г.
This quick guide offers basic information about COVID-19, the Sinovac-CoronaVac COVID-19 vaccine and what to
expect following vaccination: ...
Cet article fait partie d’une série d’explications à propos de la mise au point et de la distribution des vaccins.
Available in different languages
Many countries are using the approach of mixing vaccine doses from different manufacturers. What do we know about the safety and efficacy of this approach? What does the evidence tell us about using a fraction of the vaccine dose ? Dr Katherine O’Brien explains in Science in 5 this week.
Closed C...aptioning is available for Science in 5 in several languages on YouTube:Spanish,Portuguese,Thai,Nepali,Maithili,BahasaandJapanese.
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24 September 2021. The vaccine has been authorized by the Chinese National Regulatory Authority (NRA) – the National Medicinal Product Administration (NMPA) – as well as other regulatory authorities. Because WHO has granted Emergency Use Listing (EUL) for the Sinovac COVID-19 vaccine (Vero Cell ...[Inactivated]) – CoronaVac, the Africa Union and Africa CDC’s Regulatory Taskforce has endorsed the Emergency Use Authorisation for the vaccine (see scenario #1). As such, African Union Member States are recommended to waive any review processes and rely directly on the WHO EUL via the AVAREF managed pathway described in Scenario #1
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COVID-19 mRNA vaccines deliver directions to make a protein that educates our immune system, so it will neutralize the virus in future encounters. The mRNA-containing lipid particles are taken up by specialized immune system cells