Many of Sinopharm's trials are happening overseas, and the Chinese firm has offered little clinical evidence to back up its claims of success.
Under Beijing's 'emergency use' scheme, tens of thousands of Chinese have received unproven COVID-19 test vaccines, worrying global health specialists.
Beijing is dangling the prospect of free COVID-19 vaccines to countries vital to its interests in apparent exchange for co-operation on strategic issues and economic 'assistance'.
Inhabitants of the region deserve such relief after suffering through years of terrorism, officials say.
The latest effort proved to be a success with 4.2 million children under the age of five being vaccinated.
Mass awareness campaigns for the general public were critical in limiting the spread of the deadly virus in an area where residents at first did not take the pandemic seriously.
Pakistanis still blame the Iranian regime for the hardships they are facing due to the pandemic.
Disregard for citizens' well-being and incompetence have shaken whatever trust citizens had in their leaders in countries such as China, Russia and Iran, analysts say.
Pakistani officials say that without Tehran's patronage, the drug mafias could never succeed in smuggling drugs from Iran to the international market.
Sixty-six percent of doctors polled by a pro-Putin outlet cited lack of data on the vaccine's effectiveness, while 48% said it was impossible to create one so quickly.