In this infographic you can see the number of people that could be infected (on average) by one sick person, including Ebola.
Ebola disease is scary. The World Health Organization now estimates that the virus has killed about 70 percent of people infected in West Africa.
“I have no doubt that we will control this importation, or case, of Ebola so that it does not spread widely in this country,” said the director of the CDC, Dr. Tom Frieden.
The reproduction number, or “R nought,” is a mathematical term that tells you how contagious an infectious disease is. Specifically, it’s the number of people who catch the disease from one sick person, on average, in an outbreak.*
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