A resident salutes to health workers outside St. Paul's Hospital amid the COVID-19 outbreak in Vancouver, Canada, May 12, 2020. International Nurses Day is marked around the globe annually on May 12. (Photo by Liang Sen/Xinhua)

A health worker waves his hand as people applaud to show their appreciation outside St. Paul's Hospital amid the COVID-19 outbreak in Vancouver, Canada, May 12, 2020. International Nurses Day is marked around the globe annually on May 12. (Photo by Liang Sen/Xinhua)