Staff members of Guangdong provincial health commission and relevant hospitals attend a video conference with members of a Chinese medical expert team to Serbia, in Guangzhou, south China's Guangdong Province, April 9, 2020. A team of Chinese medical staff with experience in fighting COVID-19 arrived in the Serbian on March 21, 2020 to help with the Balkan state's battle against the virus. (Xinhua/Liu Dawei)
