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url = https://www.npr.org/tags/804916759/covid-19
covid-19 : npr
A tantalizing clue to why omicron is spreading so quickly
A new study from the University of Hong Kong offers preliminary information that could explain why this new coronavirus variant may be more transmissible.
December 15, 2021 • Scientists are watching how Portugal and other highly vaccinated countries are faring against the coronavirus' new omicron variant.