Members of a Chinese medical team get off the plane upon arrival in Khartoum, Sudan, May 28, 2020. A Chinese medical team on Thursday arrived in the Sudanese capital Khartoum to support Sudan's efforts to control the COVID-19 pandemic. (Photo by Mohamed Khidir/Xinhua)

Members of a Chinese medical team pose for a group photo with Sudanese government officials in Khartoum, Sudan, May 28, 2020. A Chinese medical team on Thursday arrived in the Sudanese capital Khartoum to support Sudan's efforts to control the COVID-19 pandemic. (Xinhua/Ma Yichong)

Members of a Chinese medical team get off the plane upon arrival in Khartoum, Sudan, May 28, 2020. A Chinese medical team on Thursday arrived in the Sudanese capital Khartoum to support Sudan's efforts to control the COVID-19 pandemic. (Photo by Mohamed Khidir/Xinhua)