Global EditionASIA 中文雙語Fran?ais
    World
    Home / World / Europe

    UK trials new COVID-19 vaccine against variants

    By ANGUS McNEICE in London | China Daily Global | Updated: 2021-04-27 09:59
    Share
    Share - WeChat
    West Ham United fans wearing a protective face mask walk towards the stadium before the match in London on December 5, 2020. [Photo/Agencies]

    Researchers are recruiting 4,000 volunteers for a trial in the United Kingdom to test a new COVID-19 vaccine that may provide broader protection against mutated strains of the novel coronavirus.

    The VLA2001 vaccine from French biotechnology company Valneva uses inactivated, whole Sars-COV-2 viruses to provoke an immune response - a long-standing approach in immunology that scientists are hopeful will hold up against COVID-19 variants.

    The vaccine was tolerated well in safety trials that ended earlier this month, prompting Valneva to initiate late-stage testing in large numbers of volunteers.

    Instead of testing the jab against a placebo, half the volunteers will be given the Valneva vaccine, and the other half will be given the AstraZeneca jab, in what is known as a comparative immunogenicity trial.

    Researchers will then assess if the Valneva shot produces equivalent or superior levels of neutralizing antibodies in comparison with the AstraZeneca treatment.

    "This Phase 3 initiation marks a significant milestone in the development of the only inactivated vaccine candidate against COVID-19 in clinical trials in Europe," said Thomas Lingelbach, chief executive of Valneva. "As COVID-19 continues to impact people's daily lives, we remain fully focused on developing another safe and efficacious vaccine solution. We believe that VLA2001 has an important role to play, including boosters or potential modifications to the vaccine to address variants."

    Valneva hopes to gain approval for its vaccine by the fall, and to begin distribution soon after.

    The jab is being manufactured in Scotland, and the UK has already signed a $1.7-billion deal for 100 million doses to be delivered in 2021 and 2022 with an option for a further 90 million doses for supply between 2023 and 2025.

    Valneva is in advanced talks to supply the European Union with 60 million doses.

    The UK's vaccines minister, Nadhim Zahawi, said the vaccine could prove "another powerful weapon in our arsenal to beat this pandemic".

    "These results are very promising and provide renewed hope that a vaccine using a whole inactivated virus might provide strong protection against variants," he said.

    While some vaccine makers have used cutting-edge, emerging techniques, including messenger RNA and viral vector technology, to produce treatments, Valneva has relied on a tried and tested approach used as far back as the 1950s in the development of polio treatments.

    Because the vaccine familiarizes the immune system with the whole virus, rather than just specific proteins, as is the case with the Pfizer, Moderna, and AstraZeneca jabs, the hope is the Valneva jab could provide broader protection against harmful variants.

    Valneva is the only European vaccine maker to use this approach. Chinese pharmaceutical company Sinopharm has also produced an inactivated whole virus COVID-19 vaccine that is already widely used around the world.

    Most Viewed in 24 Hours
    Top
    BACK TO THE TOP
    English
    Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
    License for publishing multimedia online 0108263

    Registration Number: 130349
    FOLLOW US
    亚洲精品97久久中文字幕无码 | 97久久精品无码一区二区天美| 亚洲精品无码鲁网中文电影| 无码AV岛国片在线播放| а√在线中文网新版地址在线| 无码A级毛片免费视频内谢| 亚洲一日韩欧美中文字幕欧美日韩在线精品一区二 | 无码免费又爽又高潮喷水的视频 | 亚洲欧洲日产国码无码网站| 免费A级毛片无码A∨中文字幕下载 | 日本按摩高潮a级中文片| 人妻丰满熟妇av无码区不卡| 精品亚洲成在人线AV无码| 无码人妻黑人中文字幕| 国产精品亚洲αv天堂无码| 无套中出丰满人妻无码| 亚洲看片无码在线视频| 欧美日韩中文字幕在线看| 无码中文av有码中文a| 亚洲午夜无码久久久久小说| 精品无码久久久久久国产| 国产精品无码专区| 国产激情无码一区二区| 日韩丰满少妇无码内射| 久久精品无码专区免费东京热| 无码人妻精品一区二区三区66| 亚洲午夜国产精品无码老牛影视| 日韩成人无码中文字幕| 一二三四在线播放免费观看中文版视频 | 成人午夜亚洲精品无码网站| 少妇无码太爽了不卡在线观看| 在线免费中文字幕| 中文字幕免费视频| www日韩中文字幕在线看| 欧美精品丝袜久久久中文字幕| 亚洲一区二区中文| 亚洲日韩VA无码中文字幕| 中文字幕无码av激情不卡久久| 日韩人妻无码一区二区三区久久99 | 无码AV中文一区二区三区| 久久久无码精品亚洲日韩蜜臀浪潮|