itself 

The latter case is sometimes referred to as a ``worm'', but since we are solely concerned with the property of self-replication, we shall call all such entities ``viruses''.

epidemiology 

We use the term ``epidemic'' to refer to any widespread, persistent infection in a population, even in cases where the fraction of infected individuals is extremely low.

connectivity 

The term ``connectivity'' is used in a different sense by graph theorists.

respectively 

These values for the infection and cure rates will be adhered to throughout this work to facilitate comparison of the various models. Since 107#107, the infection rate is five times the classical homogeneous threshold of 108#108 for epidemics that was derived in section 2.1.

distribution 

The event-driven simulation has computational advantages over simulations which employ fixed time steps. Within a fixed time interval, no events can occur (which is inefficient), or several can occur, causing confusion about the order of the events within that interval. The event-driven simulation guarantees that exactly one event occurs per time step.

cliques 

We use the term ``clique'' in its colloquial sense, not in its graph-theoretical sense.

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