Members of a Chinese medical team pose for a group photo after donating medical supplies to Mvurwi Hospital in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)

Chinese medical team member Peng Yue gives a lecture to local medical workers in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)

Members of a Chinese medical team visit Mvurwi Hospital in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)

Members of a Chinese medical team visit Mvurwi Hospital in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)

Members of a Chinese medical team visit Mvurwi Hospital in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)

Chinese medical team member Peng Yue gives a lecture to local medical workers in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)

Members of a Chinese medical team visit Mvurwi Hospital in Mvurwi, Zimbabwe, May 19, 2020. A team of Chinese medical experts on Tuesday visited Mvurwi Hospital to exchange notes with their Zimbabwean counterparts on how best to fight the COVID-19 pandemic. (Xinhua/Zhang Yuliang)