We consider the problem of controlling the propagation of an epidemic

outbreak in an arbitrary network of contacts by investing on disease awareness

throughout the network. We model the effect of agent awareness on the dynamics

of an epidemic using the SAIS epidemic model, an extension of the SIS epidemic

model that includes a state of "awareness". This model allows to derive a

condition to control the spread of an epidemic outbreak in terms of the

eigenvalues of a matrix that depends on the network structure and the

parameters of the model. We study the problem of finding the cost-optimal

investment on disease awareness throughout the network when the cost function

presents some realistic properties. We propose a convex framework to find

cost-optimal allocation of resources. We validate our results with numerical

simulations in a real online social network.

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