Feature: A Spanish ambulance nurse's frontline battle against COVID-19

Staff members work at the Catalonia's SEM emergency medical service coordination center in Barcelona, Spain, on Dec. 22, 2020. When the COVID-19 pandemic hit Spain in March, the country's ambulance services became the tip of the spear. Ambulance crews have been pushed to the limit attending an unprecedented number of requests for assistance. (Photo by Ismael Peracaula/Xinhua)