Nothing conclusive but if a new disease emerges has a mortality rate even approaching 9% and a basic reproduction number (R0) of 1 or greater, it's a significan

Nothing conclusive but if a new disease emerges has a mortality rate even approaching 9% and a basic reproduction number (R0) of 1 or greater, it's a significant cause for concern. Combined with the incubation period, asymptomatic transmission, and the population density in which the outbreaks occurred, in this case it's enough to declare a global public health emergency.