hmmm.. as some have said, tracking and tracing is probably impossible in the US. Does not seem like Cuomo was able to pull it off, even with Blumbergs help!
Incorrect. Tracking and tracing is working well in Alaska. It has just begun in New York. The rate of infection in New York is coming down faster than any other state. Tracing began in Massachusettes weeks ago. It is way down in cases, and even more in deaths, which indicates they are detecting more cases than they did before.
https://www.worldometers.info/coronavirus/usa/massachusetts/