Figure 1From: Comparison of three methods for ascertainment of contact information relevant to respiratory pathogen transmission in encounter networks Postcode of residence of study participants. Postcode regions in the Melbourne metropolitan area are shaded to indicate the usual residence of study participants. Between 1 and 7 subjects lived in each of the highlighted regions. In addition, two participants came from regional Victoria (one each from Bendigo and Kyneton).Back to article page