Will China's New COVID-19 Vaccine Work Against the Delta Strain?

By That's Guangzhou, September 24, 2021

0 0

A new COVID-19 vaccine developed by Chengdu-based Clover Biopharmaceuticals is said to be proven effective against all COVID-19 mutations (Delta, Gamma and Mu), according to Guangzhou-based vaccine expert Zhuang Shilihe.

Global Times reported that experts predict the vaccine candidate, SCB-2019 (CpG 1018/Alum), could be the most effective vaccine developed in China, with a 79% efficacy rate against the Delta variant and a 67% efficacy rate against other variants.

On Wednesday, the vaccine maker announced that the primary and secondary efficacy endpoints were achieved in SPECTRA, an important phase II-III clinical trial, according to a press release by Clover Biopharmaceuticals.

In the SPECTRA trial, which enrolled 30,000 adult and elderly participants across four continents, 100% of SARS-CoV-2 strains observed during the efficacy analysis were variants. The trial period ranged between April and August of 2021.

The results show a 100% efficacy against hospitalization due to COVID-19 and severe COVID-19. 

For moderate-to-severe COVID-19, the vaccine efficacy rate was 83.7% against any strain and 81.7% against Delta, while overall efficacy against COVID-19 of any severity caused by any strain was 67.2%.

Scan the QR Code to access the full report by Clover Biopharmaceutical:


The trial was funded by the Coalition for Epidemic Preparedness Innovations (CEPI), an Oslo-headquartered foundation that finances independent research projects to develop vaccines.

The Delta variant currently comprises more than 90% of global cases.

[Cover image via Clover Biopharmaceuticals]

more news

60,000 COVID-Related Deaths and 900 Million Infected in China

Reported deaths are relatively low but infections are high.

Thailand Clarifies COVID Travel Rule for China Visitors

Read below if you're planning a Thailand trip anytime soon.

Traveling From China? These Countries Have COVID-19 Regulations

Some countries and regions have introduced COVID-19-related requirements for travelers from China.

After 1,069 Days, China’s Daily COVID-19 Updates Are No More

Daily COVID-19 updates have been part of life in China since January, 2020.

Some COVID Positive Cases in China Can ‘Work as Normal’

In a move to further relax COVID measures in China...

China’s COVID Numbers No Longer Include Asymptomatic Patients

Another step in the relaxation of anti-epidemic policy.

Pictures of Post-Zero-COVID China

Let's just revel in the glory of what's happening.

How is China Changing Its COVID Testing Policies?

Many places across China have announced policy changes in line with the State Council.

0 User Comments

In Case You Missed It…

We're on WeChat!

Scan our QR Code at right or follow us at ThatsSuzhou for events, guides, giveaways and much more!

7 Days in Suzhou With thatsmags.com

Weekly updates to your email inbox every Wednesday

Download previous issues

Never miss an issue of That's Suzhou!

Visit the archives