The effectiveness of the vaccine from Sinopham approaches 100%, while moderate and severe adverse effects approach zero. I think China will soon get a blockbuster vaccine:I don't find much English information about the effectiveness of any of the Chinese vaccines, but here is snippet of one:
The vaccine’s recipients include construction workers, diplomats and students who have traveled to more than 150 countries during the pandemic, Sinopharm chairman Liu Jingzhen said. China had managed to largely keep the coronavirus off of its soil since late April, so participants in vaccine trials needed to be sent overseas to find out if the vaccine really worked.
“For example, a transnational company has 99 employees in one of its overseas offices, of whom 81 were vaccinated,” Liu was quoted explaining. “And later, an outbreak broke out in the office, 10 of the 18 people who were not vaccinated were infected and none of those vaccinated were infected.”
According to GI Healthcare Resources, Sinopharm is currently carrying out Phase III trials on its two vaccine candidates in 10 countries, including the United Arab Emirates (UAE), Bahrain, Egypt, and Morocco, involving over 55,000 subjects.
The company said none of the trial participants reported any adverse reactions or side effects
"More than 60,000 personnel who have been vaccinated have gone to work in more than 180 countries overseas without a single reported case of Covid-19 infection," it added.
GI Healthcare Resources claimed that based on the examples above, Sinopharm's vaccine effectiveness is close to 100%.