  This paper is concerned with traveling waves to an diffusive SIR model with
delay placed in the diffusion terms as well as nonlinear incidence rate with
delay. Using a cross iteration scheme and partial monotone conditions it will
be shown that the existence of quasi upper and lower solutions is a sufficient
condition for the existence of a traveling wave front. This will be shown via
Schauder's fixed point theorem. Given an appropriate basic reproduction number
the traveling wave front will flow from a disease-free steady state to endemic
steady state. The construction of quasi upper and lower solutions will be
carried out for a specific model.
