Katelyn Jetelina

SARS-CoV-2, the virus that causes COVID-19, has evolved over time into multiple variants and sublineages. loops7 / E+ via Getty Images

Pivotal points in the COVID‑19 pandemic – 5 essential reads

With the emergency phase of the COVID-19 pandemic in the rearview mirror, at least for now, we look back on a handful of stories that provided sharp insights at key moments in the pandemic.
September 11, 2021 marks the 18 month anniversary of the WHO declaring the COVID-19 outbreak a pandemic. summerphotos/Stock via Getty Images Plus

18 months of the COVID‑19 pandemic – a retrospective in 7 charts

A lot has happened since the WHO declared the coronavirus outbreak a pandemic. A portrait in data highlights trends in everything from case counts, to research publications, to variant spread.

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