COVID-19 Vaccine Successful on Monkeys, Chinese Study Shows

By That's, May 9, 2020

1 0

A COVID-19 vaccine developed by a Chinese company has proven to be effective on a species of monkey during trial testing. Researchers from Sinovac Biotech conducted the trial on rhesus macaques back in April. The study was published on April 19, and a peer-reviewed version was recently released on May 6.

The research team gave two separate doses of the vaccine, which is a chemically inactivated version of the virus, to eight rhesus macaques. After three weeks, the group was introduced to SARS-CoV-2, which causes the COVID-19 disease, and found that none developed a serious infection. The study showed that monkeys given the highest dose of vaccine responded the best, showing no signs of COVID-19 in the pharynx or lungs, while those with lighter doses had a “viral blip,” according to Science magazine. Meanwhile, unvaccinated monkeys given the virus showed clear-cut COVID-19-like symptoms.

Human trials for the vaccine began on April 16.

Given the method used to develop the vaccine, virologist Florian Krammer of the Icahn School of Medicine at Mount Sinai, said, “many vaccine producers, also in lower-middle-income countries, could make such a vaccine.”

However, there are still reservations about the trial results, such as the small sample size and whether there is a better animal model for studying the coronavirus.

Beijing-based Sinovac started phase I clinical trials in Jiangsu province, and phase II studies may begin as soon as mid-May. Of the more than 100 current COVID-19 vaccine projects, eight are being tested on people – including four in China, according to media outlet Stat.

[Cover image via NIAID-RML]

more news

Beijing’s New COVID-19 Case: What We Know So Far

On October 19, a new COVID-19 case was reported in Beijing’s Fengtai district. Two communities are under lockdown.

Do You Need a Test or Vaccine to Come to Sanya?

Find out if you should cancel that trip.

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

Experts predict the vaccine candidate, SCB-2019 (CpG 1018/Alum), could be the most effective vaccine developed in China.

Beijing Community Locked Down After Suspected COVID-19 Cases?

On Wednesday, September 15, it was reported that suspected COVID cases were found in a Beijing residential community.

Latest COVID-19 Outbreak Not Expected to Derail Holiday Travel

The outbreak is unlikely to hinder the general tourism market.

China Reports Zero New Local COVID-19 Cases Over the Weekend

China has also cleared all COVID-19 high-risk areas.

Over 2 Billion COVID-19 Vaccine Doses Administered in China

China's vaccine program accounts for 40% of the global COVID-19 shot total.

0 User Comments

In Case You Missed It…

We're on WeChat!

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

7 Days in China With

Weekly updates to your email inbox every Wednesday


Download previous issues

Never miss an issue of That's Magazines!

Visit the archives