Chinese medical experts board a charter plane at Robert Mugabe International Airport in Harare, Zimbabwe, May 25, 2020. The Chinese medical expert team on Monday left Zimbabwe for Equatorial Guinea to support the country in its response to COVID-19. (Xinhua/Zhang Yuliang)

The medical supplies brought by Chinese medical experts are loaded to a charter plane at Robert Mugabe International Airport in Harare, Zimbabwe, May 25, 2020. The Chinese medical expert team on Monday left Zimbabwe for Equatorial Guinea to support the country in its response to COVID-19. (Xinhua/Zhang Yuliang)

Chinese medical experts take group photos with the officials who come to see them off at Robert Mugabe International Airport in Harare, Zimbabwe, May 25, 2020. The Chinese medical expert team on Monday left Zimbabwe for Equatorial Guinea to support the country in its response to COVID-19. (Xinhua/Zhang Yuliang)