  We analyze the paper of Nathan D. Grubaugh et al. (Nature 546, 401-405, 2017)
and find that it does not offer a convincing quantitative explanation for what
generated the temporal distribution of human Zika virus (ZIKV) cases shown in
their paper (Fig. 1d). We criticize this aspect because it is this
understanding of how human cases develop from day-today and week-to-week within
an area such as these Ground Zeros, that policymakers need in order to mitigate
future outbreaks. We present results that strongly suggest that the missing
piece is everyday human visit-revisit behavior. These results reproduce the
human outbreak data in the key areas of Miami in 2016 very well, and give
policymakers specific predictions for how changes in human flow through these
areas will affect, and hence can be used to mitigate, future ZIka outbreaks in
Miami and beyond.
