Fig. 2

Illustration of a Realized Pathway to Final TB Diagnosis. Legend: Solid line represents the linear representation of the path through the diagnostic network. Non-solid circles represent the contact points, or nodes, of the network leading to diagnosis. The interval between each node is characterized by a step number (s) and a time interval (t). The total steps to diagnosis is s1 + s2 + s3 + s4 + s5. Total time to diagnosis is t1 + t2 + t3 + t4 + t5