After the success of phase II trials, CNBG moved on to launch the phase III tests - which will allow a vaccine into the market if it succeeds.
The drug has received approval for a year and can be used only on essential services workers such as the military.
More than 100 global leaders, including 18 Nobel Peace Prize laureates, have signed a letter calling on the international community to make COVID-19 vaccines available worldwide as a "common good", the Dhaka-based Yunus Center, founded by the Nobel Peace Prize victor Mohammad Yunus, said.
Then his team searched overseas.
Last Thursday, Brazil had reported 42,725 COVID-19 cases as authorities grappled with a surge in cases. And SinoPharm just signed an agreement with the United Arab Emirates; that study's size isn't clear.More news: Florida looks for way forward on bars
Animal research suggests that COVID-19 vaccines may prevent serious disease, but can not completely block infection. Whether it was enough to spread to the unvaccinated isn't known.
Still, that would be a great victory.
"My expectations have always been that we'll get rid of symptomatic disease". So far, only the military will have access to the vaccine.
The initial vaccines might be replaced with later, better arrivals, as historically happens in medicine, noted Duke's Ridley.
And while arm injections are the fastest, respiratory disease injections require antibodies to viruses to get to the lungs.More news: Worldwide coronavirus death toll exceeds 500,000
Some US lawmakers worry about pressure from the Trump administration to pull out an untested shot during the fall election season. Hence, the Trump administration plans to pump $10 billion into research, manufacturing and purchase agreements in a campaign dubbed "Operation Warp Speed", which includes six major U.S. pharmaceutical companies, and AstraZeneca, with the goal of having at least 300 million doses of a vaccine in stock by January next year.
"We want a vaccine, not a headline", Senator Jack Reed, a Democrat from Rhode Island, said at a recent Senate committee hearing. And while both the United States and China are cooperating with other countries on vaccines, just not with each other, European countries have sought to encourage global cooperation to meet this challenge.
Regardless of how and when a vaccine arrives, each country will also prioritize who is first in line as doses become available.
Russia, Brazil, and the USA are now the countries hardest hit in the world.More news: Sacha Baron Cohen Dupes Right-Wing Militia With Prank