Sang Ling was the first Guangdong doctor who rushed to Wuhan to fight COVID-19 in 2020.

On the first day of Wuhan's "city closure", he set out alone, from Guangdong to Wuhan via Hunan, and stayed in Wuhan Jinyintan Hospital for 76 days.

He said going to Wuhan is not retrograde, because where the patient is, he should be there.

Last year, he was awarded the "May 4th Medal of Chinese Youth" and "National Advanced Individual in Fighting COVID-19 Epidemic".

Other prototypes of Dr. China:

Chinese Doctors adapted from the real event of the struggle for prevention and control of the new crown pneumonia epidemic, taking Wuhan Jinyintan Hospital as the core story background, taking into account Wuhan tongji hospital, Wuhan pulmonary hospital, wuhan union hospital, Wuhan University People's Hospital (Hubei Provincial People's Hospital), Huoshenshan Hospital, Fangfangcang Hospital and other brother units.

Zhang Hanyu plays Jingyu, and his role prototype is Zhang, the former president of Jinyintan Hospital.

Yolanda plays Wen Ting, director of the Department of Critical Care Medicine. One of his prototypes is Zhang Jixian, director of the Department of Respiratory and Critical Care Medicine and secretary of the Party branch of Hubei Hospital of Integrated Traditional Chinese and Western Medicine.

Zhu plays the role of a doctor of Guangdong Aid Hubei Medical Team. His role prototype is Sang Ling, deputy director of the Department of Respiratory and Critical Care Medicine of the First Hospital of Guangzhou Medical University.