Is there any particular reason the US is testing so few people? They've only tested 445 people in the entire country so far[0], which is a tiny number for such a large country (contrast e.g. with the much smaller UK which has tested 7,690 people[1])? Wasn't that one of the lessons from Italy - the numbers of confirmed cases seemed to shoot up from 21 Feb mainly because that's when they started testing.
[0] https://www.cdc.gov/coronavirus/2019-ncov/cases-in-us.html
[1] https://www.gov.uk/guidance/coronavirus-covid-19-information...