It looks like your data which uses the label "Confirmed" for data in US states actually includes "presumptive positive" cases plus "laboratory confirmed" cases together. For example as of this morning (3/16) the stat of Maine has 7 federal laboratory confirmed case and 5 state laboratory presumptive positive cases. Your data combines these for a total of 12 "confirmed" cases. Maybe this distinction should be made clear for US states.
https://bangordailynews.com/2020/03/15/politics/janet-mills-declares-civil-emergency-after-maine-announces-new-coronavirus-cases/
It looks like your data which uses the label "Confirmed" for data in US states actually includes "presumptive positive" cases plus "laboratory confirmed" cases together. For example as of this morning (3/16) the stat of Maine has 7 federal laboratory confirmed case and 5 state laboratory presumptive positive cases. Your data combines these for a total of 12 "confirmed" cases. Maybe this distinction should be made clear for US states. https://bangordailynews.com/2020/03/15/politics/janet-mills-declares-civil-emergency-after-maine-announces-new-coronavirus-cases/