Model-Estimated R0, Expected Final Size of Epidemic, and Percentage of Asymptomatic or Unrecognized Cases.

aCities with two-phase outbreaks: Expected final size, percent asymptomatic or unrecognized cases and asymptomatic/unrecognized to symptomatic ratio were calculated using the R0 estimated from fitting the single-phase model to the epidemic curve.bPhiladelphia data is from second wave of outbreak.cCases were counted daily in these cities.