Fig. 1.

Structure of the agent-based model and MRSA outbreak in 66 Swedish healthcare facilities. (A) Schematic of the transition dynamics between the susceptible (S) and colonized (C) states for each individual in the agent-based model. The parameters $\gamma$, $\beta$, $\epsilon$, and $\alpha$ are the importation rate, transmission rate, environmental force of infection, and patient decolonization rate. (B) Weekly incidence of patients testing positive with UK EMRSA-15. (C) An example of the patient-to-patient contact network in Swedish healthcare facilities during 1 wk. Nodes represent individual patients in the hospital who are connected in the contact network when residing in the same room on the same day. Node color represents the number of connections for each individual. Blue indicates a node that has a small number of connections, whereas red indicates a node has a large number of connections.