I've heard it said many times that New York state is doing a much better job of testing than California. Here's something to consider.
The current figures:
New York: 75,795 positive cases and 1,550 deaths.
California: 7,421 positive cases and 146 deaths.
So New York has almost exactly 10 times the cases and ten times the deaths.
With the death ratios being very similar, doesn't this suggest that there are just a lot less cases here? Why? More flights from China to the US land in California than anywhere. We certainly get our far share of visitors from Europe, particularly this time of the year. One would think that if things were going to get as bad here as New York, we would be further along our way by now. This may just be wishful thinking, but perhaps the great determiners are population density and social distancing. Our population is obviously more spread out than metro New York. Maybe we have been doing a better job at social distancing that New York has.
I've heard that CA is bracing for an explosion of cases. But now that we are days from finishing our second week of the stay at home order, if that explosion is coming, we should see it very soon. Because the further down the road we go, the greater impact the stay at home order should have to slow the spread.