Male nurse Xing Yuanfang works in an emergency rescue room in Xinyang, central China's Henan Province, Feb. 9, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Li Jianan)

A nurse puts bandage on her face to alleviate excoriation at a hospital in Daegu, South Korea, March 15, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Lee Sang-ho/Xinhua)

Samantha Giambalvo, a traveling nurse from Alabama who has been working in New York since April 6, stands for a portrait in front of NYU Langone Medical Center in New York, the United States, May 9, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Michael Nagle/Xinhua)

A nurse stands on a testing vehicle in Johannesburg, South Africa, April 21, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Shiraaz Mohamed/Xinhua)

Nurse Zhou Li puts on a protective suit before entering the ICU at the Xianghu Branch of the First Affiliated Hospital of Nanchang University in Nanchang, east China's Jiangxi Province, Feb. 5, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Wan Xiang)

Nurse Min Yuting, once a member of the assistance team supporting Hubei Province amid the COVID-19 outbreak, prepares for a surgery at the Shaanxi Provincial People's Hospital in Xi'an, northwest China's Shaanxi Province, April 16, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Li Yibo)

A nurse smiles at a hospital in Cairo, Egypt, April 29, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Ahmed Gomaa)

Marks caused by the mask are seen on the face of a nurse at the Fuzhou Pulmonary Hospital in Fuzhou, southeast China's Fujian Province, Jan. 31, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Wang Yi/Xinhua)

Nurses transfer a patient to an ambulance in Istanbul, Turkey, May 8, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Yasin Akgul/Xinhua)

Nurse Valerie Malieudje poses for a photo at her hospital in Yaounde, Cameroon, April 23, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Jean Pierre Kepseu/Xinhua)

Recovered nurse Luan Jiawen encourages herself before entering the severe case wards at the Hankou Hospital in Wuhan, central China's Hubei Province, Feb. 18, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Cai Yang)

Male nurse Yi Junfeng (L) , who volunteered to join the battle against the epidemic, collects swab sample from a patient at a fever clinic of Hunan People's Hospital in Changsha, central China's Hunan Province, Feb. 7, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Chen Zeguo)

A COVID-19 patient shakes hands with a nurse as he is moved out of an ICU ward of a hospital in Barcelona, Spain, on May 7, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Francisco Avia/Xinhua)

Zhang Xiaoyan (L) and Wang Simei, nurses from local medical institutions, feed a 2-month-old child whose adult family members were all unfortunately infected with the novel coronavirus at an isolation area in Yingjiang District of Anqing City, east China's Anhui Province, Feb. 20, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Xinhua/Tang Yang)

A nurse claps outside Royal Berkshire Hospital during the weekly "Clap for Our Carers" in Reading, Britain on April 23, 2020. The International Nurses Day is celebrated around the world May 12, on the occasion of Florence Nightingale's birthday. The theme this year chosen by the International Council of Nurses is "Nursing the World to Health". (Photo by Tim Ireland/Xinhua)