Be patient. One of the new vaccines shows it generates lots of anti-corona virus antibodies that neutralize the virus. It still needs the usual human trials to make sure it's safe, but at least it looks like it works. Three or four of the vaccines are at this stage or further along.

Yes a Feb 1 shutdown would have saved thousands of lives. We needed time to develop tests. It's almost impossible to do the usual contact tracing when you have so much asymptomatic and pre-symptomatic spread. A tight quarantine would have knocked it down with R0 << 1.