By , CHICAGO (Reuters) - When hospital cleaner Evelia De La Cruz was assigned to the COVID-19 ward in March, she was afraid.A 60-year-old immigrant from the southern coast of Mexico, De La Cruz was tasked with stripping sheets and sanitizing beds as first a handful, and then a deluge, of coronavirus patients brought infection to her Chicago hospital.“I prayed for God to give me the courage,” she said.Some of De La Cruz’s colleagues refused to work the COVID-19 wards, she said, leaving the hospital understaffed. She has been laboring seven days a week, at times for weeks on end.“Every day I...…By , CHICAGO (Reuters) - When hospital cleaner Evelia De La Cruz was assigned to the COVID-19 ward in March, she was afraid.A 60-year-old immigrant from the southern coast of Mexico, De La Cruz was tasked with stripping sheets and sanitizing beds as first a handful, and then a deluge, of coronavirus patients brought infection to her Chicago hospital.“I prayed for God to give me the courage,” she said.Some of De La Cruz’s colleagues refused to work the COVID-19 wards, she said, leaving the hospital understaffed. She has been laboring seven days a week, at times for weeks on end.“Every day I...WW…