SARS-CoV-2 did not “just go away.” By the time you read this, more than 200,000 Americans will have died from COVID-19. We are on track to have more than 300,000 Americans die by the end of 2020 (asamonitor.pub/3gclPaV), making COVID-19 the third-leading cause of death in the Unites States after heart disease and cancer.

I have been modeling the spread of SARS-CoV-2 worldwide since late March. (Readers interested in my daily updates can contact me at steven.shafer@stanford.edu). Over the past six months, a worldwide ensemble of scientists has tackled every aspect of the biology of the SARS-CoV-2 virus and the clinical management of COVID-19, the disease it causes. This unprecedented global scientific enterprise has produced an exceptionally detailed understanding about SARS-CoV-2 and COVID-19. It has also made unprecedented progress in developing a vaccine. Although much remains...

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