These people will cause it to last much longer Slant. It may not be such a strict lockdown everywhere, but it will be continual until the science catches up to it.
Looking at what happened in the confines of NYC and its death toll, (it's a port city which was the root of the large numbers of cases, the same with NJ), however, the close confines of a large city has the potentiality to effect other large cities across the country in the same manner unless people become aware of the virus and how it spreads.
Until there is a way to know who has antibodies, who are asymptomatic carriers, and the high risk populations in general I believe we are going to keep revisiting breakouts. Let's hope they can develop a vaccine, like the flu shot, or the mumps/measles/rubella inoculations so the population can have a fighting chance against the virus.