Best tracking of US cases, with state-by-state breakdown: 91-DIVOC
Testing status: The COVID Tracking Project
Data on available ICU beds, by county: Kaiser Health News
Map of counties with no ICU beds: Kaiser Health News
Map of COVID-19 cases by county: New York Times
From Nature: Outline of the progress of a COVID-19 infection.
From Scientific American: Comparison between COVID-19 and climate change.
From Reuters: How “Patient 31” wrecked South Korea’s COVID-19 response.