Before revision:  We find that \sigma _k /\mu _k \gtrsim 3.2, where \mu _k is the mean infectiousness and \sigma _k is its standard deviation, which implies pervasive superspreading.
After revision:  We find that \sigma _k /\mu _k \gtrsim 3.2, where \mu _\beta is the mean infectiousness and \sigma _k is its standard deviation, which implies pervasive superspreading.