Burj Khalifa in Dubai is lit up in the colors of China's national flag.

A team of Chinese anti-epidemic experts arrive in Iran on Feb. 29, 2020.

Health experts from China and countries in West Asia and North Africa hold a video conference on the novel coronavirus epidemic on March 27, 2020.

China hands anti-epidemic supplies over to Sudan at Khartoum International Airport on April 15, 2020.