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A note on epidemic models with infective immigrants and vaccination

Eunha Shim

*Corresponding author:  

MBE2006,3,557doi:10.3934/mbe.2006.3.557

The roles of immigration and vaccination on disease dynamics are explored in a simple setting that considers the possibility of conferred immunity. We focus on SIR and SIS models with a vaccinated class. Conditions for the existence of multiple endemic steady states and a fold bifurcation are discussed.

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