Sinopharm vaccine remained active vs South African variant, effect reduced | Inquirer News
Close  

Sinopharm vaccine remained active vs South African variant, effect reduced

/ 12:17 PM February 03, 2021

FILE PHOTO: A sign of Sinopharm is seen at the 2020 China International Fair for Trade in Services (CIFTIS), following the COVID-19 outbreak, in Beijing, China September 5, 2020. REUTERS/Tingshu Wang

BEIJING — Two COVID-19 vaccines from Chinese companies including Sinopharm triggered immunity against a highly transmissible coronavirus variant first found in South Africa, but their effect appeared weaker, a small-sample lab study released on Tuesday showed.

Variants of the virus have stirred concern that they might weaken effects of vaccines and treatments developed prior to their emergence.

ADVERTISEMENT

Twelve serum samples each taken from recipients of two vaccines developed by a subsidiary of China National Pharmaceutical Group (Sinopharm) and a unit of Chongqing Zhifei Biological Products retained neutralizing activity against the South African variant, their researchers said in a paper.

The paper was written by researchers from Sinopharm-affiliated Beijing Institute of Biological Products, the Institute of Microbiology of Chinese Academy of Sciences, which is co-developing a candidate with Zhifei unit, and two other Chinese agencies.

FEATURED STORIES

However, the samples’ activity against the variant was weaker than against the original virus and another variant currently spreading globally, according to the paper published on website BioRxiv ahead its peer-review.

The activity reduction “should be taken into account for its impact for the clinical efficacy of these vaccines,” they said.

The Sinopharm vaccine is approved in China for general public use and is also used in several other countries including the United Arab Emirates. The Zhifei shot is in late-stage clinical trials in China and overseas.

Preliminary clinical trial data on vaccines from Novavax Inc and Johnson & Johnson also showed they were significantly less effective at preventing COVID-19 in trial participants in South Africa, where the potent new variant is widespread.

EDV

Subscribe to our daily newsletter

By providing an email address. I agree to the Terms of Use and acknowledge that I have read the Privacy Policy.

For more news about the novel coronavirus click here.
What you need to know about Coronavirus.
For more information on COVID-19, call the DOH Hotline: (02) 86517800 local 1149/1150.

The Inquirer Foundation supports our healthcare frontliners and is still accepting cash donations to be deposited at Banco de Oro (BDO) current account #007960018860 or donate through PayMaya using this link .

Read Next
Don't miss out on the latest news and information.

Subscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.

TAGS: China vaccine, coronavirus pandemic, COVID-19, Sinopharm, South African variant
For feedback, complaints, or inquiries, contact us.

Subscribe to our daily newsletter

By providing an email address. I agree to the Terms of Use and
acknowledge that I have read the Privacy Policy.



© Copyright 1997-2022 INQUIRER.net | All Rights Reserved

We use cookies to ensure you get the best experience on our website. By continuing, you are agreeing to our use of cookies. To find out more, please click this link.