Makes me hopeful we're starting to flatten the curve. One of the things I've been doing is tracking the growth factor, that is, dividing the current day's number of new infections to the prior day's number.
By doing this we can get a general sense of if transmission is accelerating or decelerating.
If the GF is above 1.0, we're still solidly in exponential growth, and still could have orders of magnitude more infections to go.
But if we can start to live at or below 1.0, we reach the inflection point, and start to see the curve flatten and then decline. Once the inflection point has been reached, we're essentially as the half-way point in terms of #'s of infections.
Now to be clear, every single day in the month of March we've had a larger # of new infections than the prior day. But the rate of that growth seems to have slowed. Going back ten days, the five day growth factor for 3/22-3/26 was 17,224/9,400 (roughly 1.83). The growth factor for the next five days, 3/26-3/30 was only 1.18. The growth factor for the last two days was only 1.02.
The medium term and short term trends seem to suggest that rates of transmission are in fact slowing.
My only question to that would be how much of the 1.83 would be attributed to the increase in testing. Was the actual number really closer to that 1.02-1.18 all along.