| Hidden Outbreaks Spread Through U.S. Cities Far Earlier |  |
[https://www.nytimes.com/2020/04/23/us/coronavirus-early-outbreaks-cities.html]
"In mid-February, a month before New York City schools were closed, New York City and San Francisco already had more than 600 people with unidentified infections, and Seattle, Chicago and Boston already had more than 100 people, the findings estimate. By March 1, as New York confirmed its first case, the numbers there may already have surpassed 10,000."
"The new findings from the model produces a range of possible outcomes for when the virus may have infected 10 people in each city. In New York, for example, the model shows that the first 10 infected people could have been walking the streets of the city as early as the last week in January, or as late as the middle of February. From there, the infections in the centers of the outbreak grew exponentially."
Nur Schätzungen / Berechnungen, aber passt zu der Info von gestern, dass es den ersten Todesfall in den USA mindestens drei Wochen früher gab, als angenommen.