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url = https://www.npr.org/tags/804916759/covid-19
covid-19 : npr
Portugal has a high vaccination rate but it isn't taking chances with omicron
Scientists are watching how Portugal and other highly vaccinated countries are faring against the coronavirus' new omicron variant.
Ben Margot/AP file photo
Colleges go back to drawing board — again — to fight COVID
December 8, 2021 • The White House says the president will veto the bill if it reaches his desk. But GOP lawmakers pushed the measure as the political fight over vaccine mandates deepens.
December 7, 2021 • Omicron has many more mutations than previous variants of concern, a fact that raises questions about how effective existing vaccines will be against the new form of the coronavirus.