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As part of the "Cheer for the Olympics" series of cultural activities, the exhibition will feature selected works by the painter He Jialin.

With the high demand for detection reagents, employees from the sales department even took high-speed trains and planes to deliver goods in person to make sure the reagents could be delivered as soon as possible.

Foreign Ministry spokesperson Hua Chunying made the remarks when asked to comment on the situation that certain countries have successively announced restrictions on the entry of Chinese citizens. Among them, the United States has raised its travel advisory for China to the highest level and has temporarily banned all foreigners who have traveled to China in the past 14 days from Feb. 2.

"In today's world, it's no longer possible to do science on your own or to control a disease on your own," Siqueira told Xinhua.

He also visited the old town of Heshun, a gateway on the ancient Southern Silk Road that linked China's Sichuan and Yunnan with Myanmar and India, to learn about exchanges, historical and cultural inheritance, as well as ecological and environmental protection along the trade route.