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Originally Answered: How is the Coronavirus spreading so rapidly?
The coronavirus is spreading so rapidly due partially to an interesting quirk of the virus: A two week incubation period.
During this period the infected person will show no symptoms, and will feel fine. However, they are able to infect people for at least part of this incubation period.
The virus is also spreading quickly through China due to the Lunar New Year, which is the largest human migration in history.
The virus is airborne and can survive on surfaces for up to 48 hours in colder climates. It is also spread through close person to person contact, infecting urban centers at a higher rate because of this.
The R0 is the rate of infection of the virus, and is sitting at 3.6. This means that for every person infected with the virus, they will go on to infect 3.6 other people. This is more virulent than the flu. Because of the high R0 of the virus, the growth is exponential, and for the past few days, the number of confirmed cases has doubled daily.
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