This changing of criteria is quite normal under these circumstances.
As I have said here before, nobody knows, and nobody CAN know, how many cases there are.
And how many there REALLY are holds the key to understanding, and eventually controlling, the problem.
If a nasopharyngeal PCR is the gold standard, under conditions existing in Hubei province, cases will be severely undercounted. If you use clinical criteria only, you will be counting flu cases, or colds.
Forget the numbers. Focus on Wuhan, and why it is so different from every other province in China, every other place on earth in fact - that’s the interesting thing about this situation.
How is Wuhan different from every other province in China, and every other place on earth?...
“Forget the numbers. Focus on Wuhan, and why it is so different from every other province in China, every other place on earth in fact - that’s the interesting thing about this situation.”
I’m starting to suspect that Wuhan is simply a couple of months ahead of the rest of China, and at least 3 months ahead of the world. We’ll see...