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Scientists tracking coronavirus variants struggle with global blind spots
Meredith WadmanScience’s COVID-19 reporting is supported by the Heising-Simons Foundation.Last month, Gytis Dudas was tracking a concerning new coronavirus variant that had triggered an outbreak of COVID-19 in his native Lithuania and appeared sporadically elsewhere in Europe and in the United States. Exploring an international database of coronavirus genomes, Dudas found a crucial clue: One sample of the new variant came from a person who had recently flown to France from Cameroon.