How are you feeling? Help build a national database of people who do, and do not, have CoVid-19 symptoms. Volunteers from Apple, Amazon, and Alphabet worked nonstop for a week to create the site. Data will be shared only with public-health officials. https://t.co/GLlsOzIyKI pic.twitter.com/w9FMLpwa0w

— David Pogue (@Pogue) March 23, 2020