  To study the influence of the moving front of the infected interval and the
spatial movement of individuals on the spreading or vanishing of infectious
disease, we consider a nonlocal SIS (susceptible-infected-susceptible)
reaction-diffusion model with media coverage, hospital bed numbers and free
boundaries. The principal eigenvalue of the integral operator is defined, and
the impacts of the diffusion rate of infected individuals and interval length
on the principal eigenvalue are analyzed. Furthermore, sufficient conditions
for spreading and vanishing of the disease are derived.Our results show that
large media coverage and hospital bed numbers are beneficial to the prevention
and control of disease. The difference between the model with nonlocal
diffusion and that with local diffusion
  is also discussed and nonlocal diffusion leads to more possibilities.
