In this paper we study some deterministic mathematical models that seek to
explain the expansion of zika virus, as a viral epidemic, using published data
for Brazil. SIR type models are proposed and validated using the epidemic data
found, considering several aspects in the spread of the disease. Finally, we
confirmed that the crucial epidemic parameter such as R0 is consistent with
those previously reported in the literature for other areas. We also explored
variations of the parameters within Brazil for different federal entities. We
concluded that a parsimonious model that includes both human and vector
populations best describe the epidemic parameters