SOCIETY
Greening Expo
Visitors take photos at the Shanghai exhibition area of the Fourth China Greening Exposition in Qiannan Buyi and Miao Autonomous Prefecture in Guizhou Province, southwest China, on October 18. The expo will end on November 18.
Vaccine Progress
About 60,000 volunteers have been given novel coronavirus disease (COVID-19) vaccines developed in China as part of phase-3 clinical trials, with no severe side effects reported, a Chinese official said on October 20.
Four potential vaccines have entered international phase-3 clinical trials so far, according to Tian Baoguo, an official with the Ministry of Science and Technology, at a news conference in Beijing. All trials are progressing well, he said.
According to Tian, the most common
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