It represents the largest single purchase and donation of COVID-19 vaccines by any single country ever. Pfizer jabs will start being sent out to the world's poorest countries in August.
Mounting evidence points to the Wuhan Institute of Virology as the origin of the devastating global pandemic, and China's propaganda machine is working overtime to debunk the theory.
Pakistan's decision to close the border was linked to Tehran's 'criminal negligence' that enabled the virus to spread, said a government health official.
Moscow and Beijing seek to undermine public trust in Western vaccines while promoting their own jabs -- which have raised serious concerns over efficacy, quality control and transparency.
There is widespread distrust of China's Sinopharm vaccine, and some healthcare professionals believe that China is testing low-quality vaccines on Pakistanis.
For much of the past year, the Kremlin has been more focused on winning the public relations aspects of the pandemic than on fighting the virus itself.
Beijing's lack of transparency and selective data sharing have frustrated the team of international specialists tasked with probing the origin of the pandemic. No conclusive findings were made.
Beijing's spin took on more urgency in recent weeks as World Health Organisation (WHO) experts arrived in Wuhan to probe the origins of the coronavirus.
The statements of interviewed locals echo China state media's massive disinformation campaign that has been hammering home the success of Beijing, and failure of Western governments.
One year after the Wuhan lockdown, Beijing is eager to promote its narrative of how it contained the pandemic, but history tells another story.