China science, technology news summary -- Jan. 22

By Li Mi

BEIJING, Jan. 22 (Xinhua) -- The following is a summary of published science and technology news of China.


CoronaVac, an inactivated COVID-19 vaccine developed by China's Sinovac Biotech Ltd., has shown good efficacy in clinical trials and can offer broad-spectrum protection against different coronavirus strains, according to Sinovac Chairman and CEO Yin Weidong.

The phase-3 clinical trials of the Sinovac vaccine are being mainly conducted in Brazil, Indonesia and Turkey.

"Combining the data from clinical trials in the three countries, we have stronger confidence in the safety and efficacy of the vaccine," said Yin in an interview with Xinhua News Agency.


Chinese officials and researchers on Thursday released 80 Dabry's sturgeon into the upper reaches of the Yangtze River in the latest effort to replenish the wild population of the endangered fish.

The release of 80 captive-bred sturgeon, launched by the Ministry of Agriculture and Rural Affairs, took place in the city of Yibin, in southwest China's Sichuan Province.

Researchers at the Yangtze River Fisheries Research Institute will monitor the released sturgeon's distribution, migration, growth and spawning.


China's first solar probe, Advanced Space-based Solar Observatory (ASO-S), is scheduled to be launched into space in the first half of 2022, marking the country's first-ever mission to "touch" the sun.

The satellite will operate in a sun-synchronous orbit 720 km above Earth to keep a close tab on the sun 24 hours a day. Measuring about 1,000 kg in total mass, the satellite is expected to orbit the sun for at least four years, according to the Purple Mountain Observatory of the Chinese Academy of Sciences, a research institute based in Nanjing, east China's Jiangsu Province.

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