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epa09096572 A woman rests with oxygen assistance in the Intensive Care Unit (ICU) of the Centenario Hospital, in Sao Leopoldo, Brazil, 23 March 2021 (Issued 25 March 2021). Brazil surpassed the mark of 300,000 deaths from COVID-19 a year after the beginning of the pandemic, amid a severe crisis in hospitals that includes a lack of oxygen tanks and medicines to care for the patients in the most serious condition. (KEYSTONE/EPA/DANIEL MARENCO)