World Health Day: These pictures of nurses show their dedication to save lives

A nurse comforts a seven-month-old baby at the Salesi Hospital following an operation after his parents were unable to visit due to coronavirus restrictions, in Ancona, Italy.

A nurse attends to a woman at a coronavirus disease (COVID-19) quarantine center in Aden, Yemen.

A nurse helps an elderly woman walk to get her shot of the Sinopharm COVID-19 vaccine at the San Ramon home for the elderly during the start of vaccinations for people over age 80 in La Paz, Bolivia.

A nurse administers the NDV-HXP-S Covid-19 coronavirus vaccine to a volunteer at the Faculty of Tropical Medicine, Mahidol Univeristy in Bangkok.

Zach Clapp, a nurse in the Pediatric Cardiac ICU at Mount Sinai Hospita signs a board demanding safe staffing during a rally by NYSNA nurses from NY Presbyterian and Mount Sinai in New York.

A nurse administers a shot at a Covid-19 mass vaccination site at Martinsville speedway in Ridgeway, Virginia.

A nurse and two staff members hold daffodils during the day of reflection to mark the anniversary of Britain's first coronavirus disease (COVID-19) lockdown, at the Marie Curie Hospice in Hampstead, in London.

Registered nurse Elizabeth Brunner vaccinates people scheduled at a drive-up COVID-19 vaccination clinic at the UPMC Lemieux Sports Complex in Cranberry Township.

Nurse Rocio Lescano touches foreheads with Victor Tripiana, 86, at the Reminiscencias residence for the elderly in Tandil, Argentina.

A nurse stands by a robot prototype built as part of a self-funded project to assist physicians in running tests on suspected COVID-19 coronavirus patients in a bid to limit human exposure to disease-carriers, along a hall at a private hospital in Egypt's Nile delta city of Tanta.