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Philadelphia’s ability to track COVID-19 variants — and the nation’s — is hobbled by a lack of resources

Almost two years into the pandemic, scientists and doctors know less than they need to know about emerging COVID-19 variants and how they spread.

A lab assistant uses a pipette to prepare coronavirus RNA for sequencing at the Wellcome Sanger Institute that is operated by Genome Research in Cambridge, Mass.
A lab assistant uses a pipette to prepare coronavirus RNA for sequencing at the Wellcome Sanger Institute that is operated by Genome Research in Cambridge, Mass.Read moreFrank Augstein