On January 21st, the number of new diagnosed cases (orange) is
exploding: there are around 100 new cases. In reality, there were 1,500 new
cases that day, growing exponentially. But the authorities didn’t know that.
What they knew was that suddenly there were 100 new cases of this new
illness.
Two days later, authorities shut down Wuhan. At that point, the number of
diagnosed daily new cases was ~400. Note that number: they made a
decision to close the city with just 400 new cases in a day. In reality, there
were 2,500 new cases that day, but they didn’t know that.
The day after, another 15 cities in Hubei shut down.
https://medium.com/@tomaspueyo/coronavirus-act-today-or-people-will-die-f4d3d9cd99ca
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