A near empty California Street in San Francisco on Saturday. Some 40 million Californians are coping with their first weekend under a statewide order requiring them to stay at home to help curb the spread of the coronavirus. (AP Photo)
A near empty California Street in San Francisco on Saturday. Some 40 million Californians are coping with their first weekend under a statewide order requiring them to stay at home to help curb the spShow more

Confronting Covid-19 with human data opens the door for a new commodity market