Day of Mourning - United Nurses of Alberta by UnitedNurses published on 2021-04-26T17:13:44Z Alberta Nurses and other health care workers save lives every day but injury rates for health care workers are higher than all other sectors, and the ongoing pandemic makes this challenging situation more difficult. April 28 is the international Day of Mourning, a day to commemorate workers lost or injured on the job and a call to protect the living.