A medical worker wipes her tears as she and her team members gather to say goodbye before leaving Wuhan, Central China's Hubei province, on March 25, 2020. They were dispatched from Southwest China's Guizhou province to aid in the prevention and treatment efforts in Wuhan, the hardest-hit region by COVID-19 disease. [Photo by Zhu Xingxin/chinadaily.com.cn]

Medics from Southwest China's Guizhou province pose for a photo at a farewell ceremony in Wuhan, Central China's Hubei province, before leaving the city for their homes on March 25, 2020. [Photo by Zhu Xingxin/chinadaily.com.cn]

A medical worker wipes her tears as she and her team members gather to say goodbye before leaving Wuhan, Central China's Hubei province, on March 25, 2020. They were dispatched from Southwest China's Guizhou province to aid in the prevention and treatment efforts in Wuhan, the hardest-hit region by COVID-19 disease. [Photo by Zhu Xingxin/chinadaily.com.cn]