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url = https://www.npr.org/tags/804916759/covid-19
covid-19 : npr
COVID-19 outbreaks hit 3 cruise ships as Florida breaks record for new cases
An undisclosed number of passengers and crew aboard the Carnival Freedom tested positive. It was the third outbreak this week affecting ships operated by Carnival and Royal Caribbean.
December 24, 2021 • As researchers try to determine the severity of cases caused by the omicron variant, the question of what exactly constitutes mild, moderate and severe COVID is weighing on people's minds.