  We study a stochastic spatial epidemic model where the $N$ individuals carry
two features: a position and an infection state, interact and move in $\R^d$.
In this Markovian model, the evolution of the infection states are described
with the help of the Poisson Point Processes , whereas the displacement of the
individuals are driven by mean field advection, a (state dependence) diffusion
and also a common noise, so that the spatial dynamic is a random process. We
prove that when the number $N$ of individual goes to infinity, the conditional
propagation of chaos holds : conditionnally to the common noise, the
individuals are asymptotically independent and the stochastic dynamic converges
to a "random" nonlinear McKean-Vlasov process. As a consequence, the associated
empirical measure converges to a measure, which is solution of a stochastic
mean-field PDE driven by the common noise.
