The highest official for Disease Control in China has stated that the efficacy of the Chinese vaccine against Covid is very low.
During a press conference, Gao Fu said that in order to compensate for this, China is considering the mixing of other vaccines with it to make it more effective.
China has developed four types of vaccines approved for public use, however their efficacy is only 50% . In China around 100 million people have taken the first dose of this vaccine.
However, Chinese authorities said that the vaccine is effective. In March they said it will be easier for foreigners who took the Chinese vaccine to obtain a visa.