That's coming sooner than a cure or a vaccine. Still, testing doesn't protect, it only informs. Anyone can contract the disease and pass it to almost every person they know before showing symptoms. Sure, tests will start to pick that up identifying the area as a hotspot, but everyone infected will still have the disease.
I was chatting with my millennial sister. She and her husband had done very well for themselves at under 40 but this shutdown has hammered them very hard. He could lose his business, and she her job because both of their businesses are very people-oriented and deemed non-essential.
Both she and her husband are very liberal even compared to other liberals but now she's talking more like a conservative, "We can't stay shut down. We need to get back to work." I told her I agreed. She said they'd rather work and pay the fines than lose their business. I told her that if enough businesses opened, legal or not, the city or state wouldn't have the resources or will to prosecute everyone...especially since they were not paying for those businesses. This wasn't eminent domain, which also requires fair compensation. The point that idiots had cut taxes so low and increased their spending so much that our nation couldn't even pay its bills before COVID-19 was addressed as was Trump is now just printing money. Almost 3 Trillion dollars worth....and we aren't done yet even if the throttle was full open again. I told her the nation would have to bite the bullet and kiss 3M-9M dead Americans if a cure or vaccine wasn't found, but we are witnessing a watershed moment in American history. We can't stop what is happening now just like we couldn't stop the planes on 9/11. What is done is done. Like then, what will happen after the crisis is over will be millions of Americans screaming "WTF?" at their representatives. "How did we let this happen? Why weren't we prepared? We were warned last fall and you did nothing for six months! Why?" Stuff like that and the result will be our nation changes course just like we did in the years following 9/11.
The good news is that Millennials might end up being revered as this century's "Greatest Generation". What made the "Greatest Generation" great was adversity and "adversity breeds character"; the triple whammy of WWI, the Great Depression and WWII, all within 30 years. The most Millennials don't remember or never knew a world without "A War on Terror". Most were young adults just starting their lives when the Great Recession hit preceded by the Housing Mortgage and Bank crises. We're still exiting the aftermath when we elect a fucking moron as President who cuts even more taxes and raises spending to record heights. Now he's just printing money, which could cause another Depression. Still, "Greatest Generation" is an awesome label!